SpaceX’s Post-IPO Frontier: A Guide on Lockups, Volatility & Taxes

After what must have seemed like an eternity, SpaceX has finally crossed over into the public markets, a momentous sigh of relief for employees and early investors.

But for many, this transition simply traded old limitations for new anxiety-inducing concerns. How do you evaluate the different types of SpaceX stocks and options you have, when do you sell or exercise, how do you handle the lockup periods and the daily volatility, and how do you at least partially cut the cord from SpaceX while minimizing your taxes? There are a lot of spinning plates to juggle.

Pre-IPO, paper wealth was tied up in a private company with limited ability to raise cash. And with private companies, the actual valuation of the stock was internally set with less transparency than the public markets.

However, public markets bring instant reactions and sometimes extreme bouts of volatility. Just in the first 90 days of public trading, SpaceX has experienced a 53% decline in about 6 weeks, and a 44% gain in just about 5 weeks. That's dizzying amounts of net worth fluctuations, at the whims of the public, when a significant percentage of your net worth is concentrated in one stock.

The goal should be to pursue early lasting financial independence, independently from one stock, and do it as tax efficiently as possible. At the same time, have the ability to maintain a portion in SpaceX to comfortably participate in future upside.

Those numbers on the computer screen might look confusing. To turn that into a potentially rock solid financial foundation, you need a tax planning strategy that aligns with the remaining staggered unlock periods of SPCX.

Step 1: Know What You Actually Have

Before you design a liquidation timeline, you must know the inventory of stocks and options you hold. Each may have different tax obligations when the restrictions lift.

For Early Hires: Is QSBS Available?

If you are one of the early hires at the company, before you sell any shares, check with the corporate finance team for a little known tax exclusion known as the Section 1202 Qualified Small Business Stock (QSBS) Exclusion. If your original equity grants were issued back when SpaceX had less than $50 million in gross assets, and you have held those shares for a minimum of five years, you may qualify to exclude up to 100% of your capital gains from federal income tax, capped at a lifetime limit of $10 million or ten times your cost basis. The rules around QSBS are incredibly rigid and depend on the company's asset size at the exact moment your stock was granted or options were exercised.

If you are a California resident or were granted QSBS qualified shares while working out of the Hawthorne headquarters, you will still owe tax to the state of California. Depending on when the shares were acquired, they may or may not fall under AMT rules.

If you have QSBS stock, be sure to schedule time to meet with someone before selling.

Step 2: Navigate the Staggered Post-IPO Unlock Schedule

Once you audit your inventory, the next step is to evaluate your exit strategy with the unlock periods.

Most traditional IPOs block insiders from selling for 180 days, but SpaceX uses a unique staggered lockup structure. This means you face a series of selling decisions rather than just a single event.

• Initial Wave: Insiders are eligible to sell a baseline tranche (up to 20%) shortly after the company's first public quarterly earnings report.
• The Performance Tranche That Wasn't: An additional 10% tranche would've unlocked early if the stock price sustained a target price of 30% or more above the $135 initial offering price over a specific trading window, but failed to meet the criteria and didn't open up.
• Future Tranches: Subsequent blocks of shares have already started releasing at designated intervals (days 70, 90, 105, 120, and 135 post-IPO), followed by a final tranche release on day 180.

RSUs Vesting

• Most SpaceX Restricted Stock Units (RSUs) are single-trigger, meaning they vest based on time employed. With new tranches of RSUs vesting throughout 2026, this will generate ordinary income taxes, similar to as if you received a cash bonus. The difference is that it's paid as stock into your account, and if you haven't sold any shares, you still have a tax bill due for it for the calendar year it vested in, even if you haven't actually received any cash.
• There may be some double-trigger RSUs, which vest based on time employed as well as a liquidity event, such as the IPO date. There's a strong chance that with the IPO becoming official this year, the second trigger has activated years of RSUs to vest all at once. Check to see if a "sell-to-cover" transaction occurred, where a portion of shares is automatically sold off to cover your estimated tax withholding

Set a Concentration Guardrail

• Public markets can lead to intense daily price fluctuations, so keeping too much wealth in one stock exposes you to severe volatility.
• You can use the rolling unlock dates as an unbiased reallocation event, selling off predefined amounts over time until SPCX reaches a certain percentage target of your total net worth that you're comfortable with.
• Many experienced advisors get uncomfortable when over 10% of your net worth is tied up in one stock, and definitely don't want to see anything over 20% of total net worth. However, I believe this is a case by case basis and should be evaluated as such.

Consider a 10b5-1 Plan

• For VPs, Directors, and others who may have routine access to material non-public information (MNPI), trying to manually sell during brief windows can be a major compliance problem. Top SpaceX executives may adopt a formal Rule 10b5-1 plan that locks in instructions when setting up automatic sells. Following their lead can thereby remove market timing anxiety as well as execute trades automatically through blackout periods.
• The rules are rigid, so if you set up a plan and later want to make changes, you will essentially have to terminate the existing one and restart the entire process for a new one. There will be a mandatory cooling off period before trades can resume.

Step 3: Time Your Exercises and Manage ISO AMT Exposure

Incentive Stock Options (ISOs) offer the greatest potential tax advantages, because of the Long Term Capital Gains opportunity. This can potentially drop your tax rate from high ordinary income tax brackets (up to 37%) down to federal LTCG rates (15% or 20%). To qualify, ISO shares must be sold at least:

• 1 Year from the date the options were exercised.
• 2 Years from the date the options were originally granted.

Let's talk about the spread. The spread is the difference between the strike price and the stock's market value on the day you exercise the ISO.

The entire spread can qualify for Long Term Capital Gains rates, as well as any subsequent gains. But you must have a carefully thought out plan because they also carry the risk of dealing with the Alternative Minimum Tax (AMT). You must understand how much to exercise and when you pull the trigger.

The AMT is a parallel tax system that most people don't realize is being calculated, but it rears its head in particular situations, like when someone exercises a lot of ISOs. If your AMT tax crosses over into a higher amount than your regular tax, then you will pay the higher AMT tax amount. At the federal level, these AMT brackets tax at either 26% or 28%.

California is one of five states that has its own separate AMT tax calculation, and is tied for the highest AMT tax percentage at 7%. This aggressive stance is likely designed to capture revenue from the large volume of stock options granted and exercised in California's tech sectors. Notably, Texas does not have a state income tax or AMT tax.

Calculate the AMT Crossover Point

• Determine the exact number of ISOs you can exercise in a single calendar year before your AMT liability exceeds your regular tax liability.
• Exercise portions of the contract right up to this threshold annually to convert options into shares without triggering an immediate out-of-pocket tax bill.
• The Crossover Point could be relatively low, with SpaceX continuing to appreciate in value. This means you might only be able to execute a few ISOs before hitting the Crossover Point.
• Coordinate first with a financial advisor or an accountant who can help model the AMT threshold.

Strategy A: Exercise Early in the Year

If you plan to exercise and hold a block of ISOs that exceeds your AMT threshold, ideally aim to execute early in the calendar year (January or February). This timing provides two advantages:

• A 15 Month Timeframe to Raise Cash
  • Exercising in January 2027 means your AMT cash payment isn't due until April 15, 2028.
  • This 15 month window gives you the maximum time possible to save up salary, wait for other investments to vest, or budget your cash flow without rushing.
  • Exercising late in the year gives you only a few months before taxes are due.
• An 11 Month Backup Plan
  • If you exercise in January, you have until year end to see what happens before the AMT liability gets locked in. If you exercise at $150 and SPCX plummets to $70 by November, you aren't stuck.
  • Since the tax year isn't over, you can still consider executing a "Disqualifying Disposition" by selling the shares before December 31st.
  • Selling the shares breaks the ISO status and bypasses the AMT rules. You will still face ordinary income taxes on the exercise spread, but it can prevent a much bigger AMT liability on gains you no longer have.
• One Full Year for LTCG
  • You get the full year to monitor the stock, giving you optionality to hold or sell. If you decide you don't need the backup plan and hold past one year, future sales qualify for more favorable Long Term Capital Gains tax rates.

Strategy B: Examine Your 2026 AMT Threshold

• As we approach the final quarter of 2026, this first year post-IPO can be a bit of an anomaly. If you had RSUs that vested, your AMT threshold may actually get pushed higher due to generating higher ordinary income tax. This might give you a rare, unique opportunity to exercise a batch of ISOs while minimizing your AMT impact.
• The tax year ends on December 31st, so there isn't much time left. If you haven't already, you should get your AMT Crossover Point calculated before year end.

Strategy C: Use Your Other Options to Fund ISO Exercises

• Utilize proceeds from RSU sales to fund the cash strike price and AMT tax bill on your ISOs.
• Sell vested, unlocked RSUs immediately since they are already taxed at the entire market value anyway. This provides liquid cash to cover your ISO exercise costs. Any gains above the fair market value will be subjected to Short Term Capital Gains tax rates if sold under one year, or at Long Term Capital Gains tax rates if sold after one year.
• Set cash aside during high income years if you choose not to exercise ISOs, building a cash cushion to fund exercises in future, lower income years.

Phantom Income Warning: The Risk of Exercising ISOs in a Down Year

• Markets don't go straight up: We've already seen tremendous volatility in 90 days, and we can't predict market behavior.
• The Alternative Minimum Tax (AMT) Reality: The IRS treats the spread between your strike price and the current SPCX market value as real income for the AMT calculation, even if your shares are locked up and you can't sell them.
• The valuation is frozen: Exercising ISOs late in the year locks in your tax liability at the exercised price once the calendar year flips. If your exercise price is locked in at $150 and the stock plummets to $70 before you reach 12 months, your tax bill doesn't shrink. You will still owe AMT taxes based on the full $150 price.
• Liquidity Squeeze: Potentially worse is that if you execute late in the year and were misinformed or unprepared for the tax bill, you only have a few months to come up with the cash. You may now be forced to sell your stocks at the depressed price, potentially forcing you to pay taxes and exercise costs that could wipe out the actual market value of your stock. 
• Important: Before exercising a large block of ISOs, calculate your AMT Crossover threshold first. If you lack the personal liquid cash to cover a surprise tax bill next April, exercise early in the year and/or utilize RSU proceeds to raise the cash.

A Silver Lining: Recovering Cash via AMT Credits

• AMT is technically a prepayment of tax, not a permanent loss of wealth.
• Generate credits when you pay AMT on exercised ISOs that you continue to hold. Every dollar paid due to an ISO exercise generates an equivalent dollar of Minimum Tax Credit (MTC). This credit carries forward indefinitely on your tax returns.
• Claw back money from both the IRS and California's Franchise Tax Board (FTB) in future tax years when your regular income tax liability exceeds your calculated AMT threshold, activating the credit.
• It's paid now to prevent double taxation. When you eventually sell your long term shares, your regular tax bill jumps due to the capital gains taxes due. Since you already prepaid the tax via AMT on the option exercise, any remaining credits that activate will drive down the total tax owed.

Since the AMT tax is "prepaid" and can essentially come back to you, let's discuss a few more strategies.

Strategy C (Part 2): Mind the RSU Vesting Schedule

• SpaceX has shifted more toward RSUs for modern compensation. RSUs vesting will spike your income, which can create an additional tax burden. But in a way, this helps with your old ISOs.
  • A new window is created where your regular tax bill potentially spikes higher than the AMT threshold, allowing you to claw back AMT tax previously paid.
  • It can create a higher Crossover Point for you to exercise additional ISOs

Strategy D: Exercising ISOs Every Other Year

• Exercise ISOs early in the year, for example January 2027. This creates a large AMT tax bill for tax year 2027, due in April 2028.
• Achieve a 12 month holding period by January 2028, now creating the more beneficial Long Term Capital Gain tax rates
• Sell the stock that was exercised in January 2027, say in February 2028 (you need at least one year and one day after the exercise). This potentially creates a large tax bill in 2028 that exceeds the AMT threshold.
• Pay your AMT tax bill by April 15, 2028. Bonus if you sold the stock early in 2028, you can use the proceeds to fund the AMT tax payment.
• Do not exercise any ISOs in 2028, thereby maximizing the difference between your regular tax bill and the AMT threshold.
• File your tax return in 2029 for tax year 2028, and claw back a potentially significant portion of the AMT tax you prepaid the previous year.
• Reevaluate exercising ISOs early 2029, to see what remains and if it makes sense to start the process again.

Strategy D (Part 2): What If You Plan to Move Out of California?

States such as Texas, Florida, or Washington have no state income tax and no AMT rules. If you are relocating from California to a different state, AMT rules change, and so do clawback rules. With California's top tax bracket at 13.3%, the game changes quite a bit. Let's use a relocation to Texas as an example and discuss.

• California AMT credit could get trapped. Whether you exercise your ISOs in California or in another state, if the options were granted in California, the state will still want their pound of flesh in AMT payments. If you now have an AMT credit in California and then establish residency in an income tax-free state (spending at least 6 months and 1 day in the new domicile), and then sell your shares with no state capital gains taxes, your future California tax liability is reduced to $0. State tax free gains are great, but you no longer have a way to claw back the indefinite AMT credit floating in California's tax system.
• Wait to relocate before exercising your ISOs, because it still benefits you. If you exercise in California, you owe 100% of the AMT tax. But if you establish residency in another state first and then exercise, the Franchise Tax Board can only tax you on a pro-rated basis, shielding a portion of your exercise value from the 7% AMT tax.

You'll have two strategic choices to make if moving out of state is on the horizon.

• Disqualifying Disposition after Relocating: Wait until you move and establish residency. Then exercise your options, and sell the stock in the same year. This breaks the ISO rules and benefits, and negates the AMT completely. California gets a prorated workday percentage of ordinary income, but the other remaining portion could be 100% state tax free in a state such as Texas.
• Forget about the California AMT Credit: If you stayed in California, exercised and sold your stock, you would be paying up to a 13.3% state tax to claw back against the 7% AMT tax you paid. Moving to a state like Texas saves you the 13.3% state tax owed in capital gains, which could be worth the trade-off. Onward and upward.

What Happens If You Leave SpaceX?

Leaving a company is always a major transition, but leaving SpaceX post-IPO with unexercised options starts a 90 day countdown clock. You must act quickly, or the equity you spent years building can go up in smoke. Here is how to handle your options before the clock runs out.

The Post-Termination Exercise (PTE) Window

• The 90 Day Rule for ISOs: By law, once you officially terminate your employment, you have exactly 90 days to exercise your ISOs before they are forfeited.
• Tax Status Transformation: If your ISOs aren't forfeited after the 90 day window, and SpaceX's plan rules allow you more time to hold them internally, they automatically convert into Non-Qualified Stock Options (NSOs). Unlike ISOs where the spread can potentially be taxed at Long Term Capital Gains rates and the AMT can be clawed back as credit, exercising NSOs means the spread is immediately subjected to ordinary income tax.
• Check your grant agreement: Many equity plans state that any unexercised options are completely forfeited back to the company when the PTE window closes.

What About Vested and Unvested RSUs?

• Unvested RSUs
  • Any RSUs that haven't reached their vesting date are forfeited immediately on your last day of employment. There is no grace period and no way to exercise them. if you are close to a vesting cliff, make sure to look at those dates before exiting the company.
• Vested RSUs
  • Any RSUs that have already vested are shares of stock you own outright. Leaving the company does not take away your ownership of those shares. However, you are still subject to the current ongoing lockup schedule, as well as any blackout periods even if you are an ex-employee, as you are still bound by insider trading laws.

Step 4: Prioritize Your Balance Sheet

Once you have a plan in place, it's time to focus on your foundational financial health. As cash lands from an unlocked sale, consider funneling it through different stages.

• Set Aside Money for Taxes: put 20% to 40% of the gross sale proceeds into a High Yield Savings Account. Adjust your withholdings and determine if you need estimated tax payments to avoid underpayment penalties to the IRS.
• Create an Emergency Buffer: Put 3 to 6 months of essential living expenses in liquid cash, cash equivalents, and treasuries.
• Eliminate Bad Debts: Wipe out any personal debt or credit cards with high interest rates.

Step 5: Reinvestment, Diversification, and Longer Term Planning

To pursue sustainable, early financial independence, transition the excess cash into a diversified portfolio.

• Partner with a comprehensive financial advisor who can build a customized diversification strategy to safely transition your wealth away from a single stock.
• Implement advanced investment techniques with an experienced advisor, such as harvesting tax losses or setting up an Exchange Fund to switch a concentrated stock position for a basket of blue chip assets without triggering an immediate tax event.
• It should not be just about investments. You can work actively with them to build out a risk management plan (such as umbrella insurance for protection) and coordinate estate planning to ensure your family's future is secure. Advanced estate planning strategies can potentially be implemented to shift rapidly appreciating stock out of your taxable estate.

There's no one single right answer on what to do.

Every situation is different, and your own strategy might change based on a variety of factors:

• How many options are being exercised? The types and amounts matter the most for your tax bill and your specific situation.
• How much liquidity? It can depend on the amount of liquid cash you have, or how long you want to hold the stock, or whether you want to implement cashless exercises to help cover your tax bill at the expense of having fewer shares. You may want to use more cash to fund and enjoy your lifestyle now.
• Risk tolerance could be higher or lower, and that may require you to keep more cash, or you may prefer to maintain an outsized position.
• Corporate progress of SpaceX. You might be monitoring the company closely when it comes to SpaceX's launch cadence, or Starlink's growth, or developments with SpaceXAI. This might be a driving factor for whether you want to hold more shares or less.
• What Life Stage are you? You may be closer to retirement age, or you may have a young family with different expenses to consider or elderly parents you want to help take care of. You might be someone who wants to fund your kids' college plans.

There's much more than just deciding what to do with the shares post-IPO. Review your situation with a professional who has an understanding of how stock options work, and how it may impact the rest of your financial situation.

Step 6: Finally, HAVE FUN!

This is what you've been waiting for. You've worked so hard for so long and made sacrifices to have a better future. That future is here now.

If you've put a solid plan in place, then take this for what it's worth, from a financial professional of over 20 years who strives to make good financial decisions every single day for myself and others. Some of us may be inclined to keep growing assets above all else, but life is about balance, and time doesn't come back.

Reward yourself for all your patience waiting and watching your net worth grow. It's time to spend some of that hard earned wealth and hopefully be able to enjoy the lifestyle you always wanted. Take the trip you've been thinking about but holding off on. Prioritize your long term health, and give yourself permission to unplug for a bit and recharge. Structure your portfolio to support you and your loved ones and tactically make the big purchases you've had your eyes on for years. You deserve it.

And, if you have plenty to cover for all of your needs and all of your wants, consider sharing some of your wealth reasonably. Share it with those you love and those you care about, and for those in need who you wish to support through Charitable Giving. As they say, it's often better to give than to receive.

Pay it forward, so that you can inspire the next person to dream of reaching for the moon and stars. 

New Adventures Await

Whew! SpaceX is finally public, another mission accomplished. Now for the next box to check off. The decisions you make regarding your remaining lockup tranches, AMT exposure and diversification goals over the next few months and years could shape your financial trajectory for decades to come. If you want help to optimize your SpaceX equity and build a lasting legacy, reach out today to schedule a complimentary introductory consultation.