Archer Aviation (ACHR) Stock Concentration Calculator
Calculator · free · no signup · ACHRQuantify Archer Aviation concentration risk. Drawdown impact at 30 / 50 / 70%, with the tax-aware trade-off between selling down and hedging.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your inputs
Adjust — results update instantly.Position & portfolio
Tax
Most fee-only advisors target ≤10% in any single name. You're at 67%.
Estimates only. Not financial advice.
Most sensitive to: Expected market return (±10% on this input swings best-plan wealth by ±$190,508).
Cost of fully de-concentrating
All three plans sell to 0% (no hedge).Sensitivity. If your expected position return drops below 19.6%/yr, lump-sum (sell everything today) beats every spread plan above.
Build your own plan
Toggle below — chart updates live. Sell buttons show the slice.Tech / Software single names hit a 50%+ peak-to-trough drawdown in roughly 1 of every 5 rolling 3-year windows over 2014–2024. Even mega-caps aren’t exempt.
Tax brackets: 2026 · Estimates only — not financial advice.
Estate note. Heirs receive a stepped-up basis at death (§1014), eliminating built-in gain on inherited shares. Older holders who plan to bequeath rather than sell may rationally never de-concentrate.
You sized one position's risk. The beta integrates hedging, sell-down, and tax timing into one optimized plan.
Request beta access →About Archer Aviation
Archer Aviation (ACHR) is a public Aerospace/Defense company, headquartered in San Jose, CA. IPO'd Sep 17, 2021.
Last close: $5.44 per share (as of 2026-06-17).
Equity grants at Archer Aviation typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).
Archer Aviation Inc. is a publicly traded company headquartered in San Jose, California, which is developing eVTOL aircraft.
Source: Wikipedia (CC BY-SA 4.0)
Founded in 2018 by Adam Goldstein and Brett Adcock (Adcock later departed to launch Cover and Figure), Archer Aviation builds the Midnight, a piloted four-passenger eVTOL air taxi designed for short urban hops. The Santa Clara company went public on the NYSE in September 2021 via SPAC merger with Atlas Crest Investment under ticker ACHR. Recent activity includes 100 percent FAA acceptance of its Means of Compliance, a Restricted Type Certificate track with the UAE GCAA, partnership agreements covering Saudi Arabia with Red Sea Global, and an autonomy collaboration with Wisk Aero and Boeing tied to a Boeing equity investment.
Sources: investors.archer.com · asdnews.com · investors.archer.com
Equity comp at Archer Aviation
- RSUs use single-trigger vesting: shares become yours as each portion vests on schedule, and the value is taxed as ordinary income at that point. No IPO or acquisition is required.
Researched 2026-05-07.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Archer Aviation.
If a meaningful share of your net worth sits in ACHR, concentration risk is the question. This calculator quantifies drawdown impact at 30 / 50 / 70%, and the trade-off between selling down (tax cost now) versus hedging (option premium drag), auto-filled with ACHR's option-implied volatility.
Example: 5,000 ACHR shares at $5.44 is a $27,200 position. A 30% drawdown costs $8,160; a 50% drawdown costs $13,600; a 70% drawdown costs $19,040. The calculator quantifies the trade-off between selling down (immediate capital-gains tax) and hedging (option premium drag) using ACHR's option-implied volatility and your cost basis.
All Archer Aviation tools → · Use the generic Stock Concentration Calculator for any company.
Archer Aviation equity questions
- How much ACHR stock is too much?
- There is no single threshold, but the larger the share of your net worth in one stock, the more a single bad year can set back your plans. The calculator above quantifies the drawdown impact at 30, 50, and 70 percent for your ACHR position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Archer Aviation grant ISOs, NSOs, or RSUs?
- Equity compensation at Archer Aviation typically takes the form of incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise. Restricted stock units are taxed as ordinary income when they vest.
- Do Archer Aviation RSUs use double-trigger vesting?
- No. Archer Aviation restricted stock units (RSUs) use single-trigger vesting: each tranche becomes yours as it vests on schedule, taxed as ordinary income at that point, with no liquidity event required.
One piece of the puzzle.
OptionsAhoy plans your Archer Aviation equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.