Flex (FLEX) Stock Concentration Calculator
Calculator · free · no signup · FLEXQuantify Flex 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.
Have multiple RSU vest lots? The RSU Lot Order Calculator picks which lots to sell first, and on which dates, to divest at the lowest computed tax.
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 →Related calculators: Protect Your Stock Calculator · RSU Lot Order Calculator · Equity Funding Plan Calculator
About Flex
Flex (FLEX) is a public Hardware company, incorporated in Singapore and headquartered in Austin, TX.
Last close: $120.24 per share (as of 2026-08-18).
Equity grants at Flex typically include restricted stock units (RSUs).
Flex Ltd. is a Singapore-domiciled multinational manufacturing company. It is the world's third largest global electronics manufacturing services (EMS), original design manufacturer (ODM) company by revenue, behind only Pegatron. Flex's U.S. corporate headquarters are located in Austin, Texas. The company has manufacturing operations in over 30 countries, and employs about 172,000 people.
Source: Wikipedia (CC BY-SA 4.0)
Founded in Silicon Valley in 1969 and later redomiciled to Singapore, the company builds products other companies design, running electronics manufacturing for customers across automotive, medical, industrial, and cloud infrastructure. Contract manufacturing is a scale business with thin margins, so the strategy has been to move up into higher-value segments where engineering content and regulatory qualification make a customer harder to move. Medical devices and automotive electronics carry longer design cycles and stickier relationships than consumer hardware. Data-center power and cooling products have become the growth line. Headquarters are in Austin, Texas.
Sources: sec.gov · en.wikipedia.org
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Flex.
If a meaningful share of your net worth sits in FLEX, 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 FLEX's option-implied volatility.
Example: 5,000 FLEX shares at $120.24 is a $601,200 position. A 30% drawdown costs $180,360; a 50% drawdown costs $300,600; a 70% drawdown costs $420,840. The calculator quantifies the trade-off between selling down (immediate capital-gains tax) and hedging (option premium drag) using FLEX's option-implied volatility and your cost basis.
All Flex tools → · Use the generic Stock Concentration Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
Flex equity questions
- How much FLEX 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 FLEX position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Flex grant ISOs, NSOs, or RSUs?
- Equity compensation at Flex typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
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OptionsAhoy plans your Flex equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.