Reddit (RDDT) Stock Concentration Calculator

Calculator · free · no signup · RDDT

Quantify Reddit 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

Default. Adjust to test.
35%
Default. Adjust to test.
20%
10%

Tax

67%
Highly concentratedLong-term
If 30% drop
$150,000
If 50% drop
$250,000
If 70% drop
$350,000

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).

Tax
Wealth (3y)$956,485
+$33,417 vs.

Tax
Wealth (3y)$994,174
+$71,106 vs.

Tax
Wealth (3y)$1.04M
+$112,490 vs.

Sensitivity. If your expected position return drops below 19.6%/yr, lump-sum (sell everything today) beats every spread plan above.

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Toggle below — chart updates live. Sell buttons show the slice.
Sell over 1 yearSell over 2 yearsSell over 3 yearsCustom
$712,500$815,995$919,489$1,022,984$1,126,478Yr 0Yr 1Yr 2Yr 3
Year 1
Year 2
Year 3
Tax$200,753
Hedge cost$37,676
Wealth at Y3$1,046,371
Vs. best fixed plan+$10,813

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.

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About Reddit

Reddit (RDDT) is a public Consumer Internet company, incorporated in Delaware and headquartered in San Francisco, CA. IPO'd Mar 21, 2024.

Last close: $175.39 per share (as of 2026-06-16).

Equity grants at Reddit typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).

Reddit is an American proprietary social news aggregation and forum social media platform. Registered users submit content to the site such as links, text posts, images, and videos, which are then voted up or down by other members. Posts are organized by subject into user-created boards called "subreddits". Submissions with more upvotes appear towards the top of their subreddit and, if they receive enough upvotes, ultimately on the site's front page. Reddit administrators moderate the communities. Moderation is also conducted by subreddit-specific moderators, who are unpaid volunteers. It is operated by Reddit, Inc., based in San Francisco.

Source: Wikipedia (CC BY-SA 4.0)

Steve Huffman and Alexis Ohanian launched Reddit from Y Combinator's inaugural 2005 batch, with Aaron Swartz joining months later via the Infogami merger. Conde Nast bought the site in 2006 for roughly $10-20M, then parent Advance Publications spun it back out as an independent subsidiary in 2011. Headquartered in San Francisco, the company runs community-driven discussion forums and licenses its conversation archive to Google and OpenAI for AI training. Reddit went public on NYSE in March 2024 under ticker RDDT. Daily active uniques hit 121.4M and weekly actives reached 471M by 2025.

Sources: en.wikipedia.org · cjr.org

Equity comp at Reddit

  • 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 Reddit.

If a meaningful share of your net worth sits in RDDT, 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 RDDT's option-implied volatility.

Example: 5,000 RDDT shares at $175.39 is a $876,950 position. A 30% drawdown costs $263,085; a 50% drawdown costs $438,475; a 70% drawdown costs $613,865. The calculator quantifies the trade-off between selling down (immediate capital-gains tax) and hedging (option premium drag) using RDDT's option-implied volatility and your cost basis.

All Reddit tools → · Use the generic Stock Concentration Calculator for any company.

Reddit equity questions

How much RDDT 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 RDDT position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
Does Reddit grant ISOs, NSOs, or RSUs?
Equity compensation at Reddit 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 Reddit RSUs use double-trigger vesting?
No. Reddit 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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