Cisco (CSCO) Stock Concentration Calculator
Calculator · free · no signup · CSCOQuantify Cisco 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 Cisco
Cisco (CSCO) is a public Hardware company, incorporated in Delaware and headquartered in San Jose, CA. IPO'd Feb 16, 1990.
Last close: $119.57 per share (as of 2026-06-17).
Equity grants at Cisco typically include restricted stock units (RSUs).
Cisco Systems, Inc., doing business as Cisco, is an American multinational technology conglomerate corporation that develops, manufactures, and sells hardware, software, telecommunications equipment and other high-technology services and products focused on networking, cyber security and AI. Cisco specializes in specific tech markets, such as the Internet of things (IoT), domain security, videoconferencing, and energy management, including products such as Webex, OpenDNS, Jabber, and Jasper. The company is headquartered in San Jose, California, and, as of December 2025, has a market capitalization of $317 billion.
Source: Wikipedia (CC BY-SA 4.0)
Leonard Bosack and Sandy Lerner, a Stanford couple, founded Cisco in 1984 to commercialize multiprotocol routing, then took the company public on NASDAQ in February 1990 under ticker CSCO. From San Jose headquarters, Cisco ships Catalyst switches and routers, Webex collaboration, Talos-backed security, and UCS servers tuned for AI infrastructure. The March 2024 Splunk acquisition closed at roughly $28 billion and lifted fiscal 2025 security revenue 117% to $8.09 billion. CEO Chuck Robbins, in the seat since 2015, reported $56.7 billion in fiscal 2025 revenue, up 5% year over year.
Sources: investor.cisco.com · cybersecuritydive.com
Equity comp at Cisco
- 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 Cisco.
If a meaningful share of your net worth sits in CSCO, 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 CSCO's option-implied volatility.
Example: 5,000 CSCO shares at $119.57 is a $597,850 position. A 30% drawdown costs $179,355; a 50% drawdown costs $298,925; a 70% drawdown costs $418,495. The calculator quantifies the trade-off between selling down (immediate capital-gains tax) and hedging (option premium drag) using CSCO's option-implied volatility and your cost basis.
All Cisco tools → · Use the generic Stock Concentration Calculator for any company.
Cisco equity questions
- How much CSCO 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 CSCO position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Cisco grant ISOs, NSOs, or RSUs?
- Equity compensation at Cisco typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Cisco RSUs use double-trigger vesting?
- No. Cisco 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 Cisco equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.