Amphenol (APH) Stock Concentration Calculator
Calculator · free · no signup · APHQuantify Amphenol 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 Amphenol
Amphenol (APH) is a public Hardware company, incorporated in Delaware and headquartered in Wallingford, CT.
Equity grants at Amphenol typically include restricted stock units (RSUs).
Amphenol Corporation is an American producer of electronic and fiber optic connectors, cable and interconnect systems such as coaxial cables. Amphenol is a portmanteau from the corporation's original name, American Phenolic Corp.
Source: Wikipedia (CC BY-SA 4.0)
Founded in Chicago in 1932 to make radio tube sockets, the company now sells connectors, cable, and sensors into essentially every electronics end market: datacenter, automotive, defense, industrial, and mobile. Growth has come from a deliberate acquisition cadence, dozens of small deals absorbed into a decentralized structure where operating units keep their own management. That model produces unusual consistency in margins across cycles. Headquarters are in Wallingford, Connecticut, and datacenter interconnect has become a prominent growth line.
Sources: amphenol.com · en.wikipedia.org
Equity comp at Amphenol
- 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 2026-08-17.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Amphenol.
If a meaningful share of your net worth sits in APH, 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 APH's option-implied volatility.
All Amphenol tools → · Use the generic Stock Concentration Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
Amphenol equity questions
- How much APH 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 APH position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Amphenol grant ISOs, NSOs, or RSUs?
- Equity compensation at Amphenol typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Amphenol RSUs use double-trigger vesting?
- No. Amphenol 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.
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OptionsAhoy plans your Amphenol equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.