Optimism is an Ethereum Layer 2 scaling solution developed by the Optimism Foundation, using Optimistic Rollup technology to reduce gas fees while inheriting Ethereum's security. What makes Optimism architecturally distinctive is the OP Stack — an open-source, modular framework for building Optimist...
🔴 Optimism tip: Optimism is an Ethereum Layer 2 using the OP Stack — an open-source framework also powering Coinbase Base, Worldcoin, and dozens of other "Superchain" networks. OP governs the Optimism Collective via a bicameral system: the Token House (OP holders) votes on protocol upgrades; the Citizens' House (non-transferable NFTs) allocates Retroactive Public Goods Funding (RetroPGF).
Short-term gains (<1 year) taxed as ordinary income (10%–37%).
NET PROFIT
+$3,494.50
ROI
+349.10%
OP BOUGHT
1000.0000
BREAK-EVEN
$1.00
AFTER-TAX
+$2,725.71
NET PROFIT
+$3,494.50
ROI
+349.10%
PRICE CHANGE
+350.00%
MULTIPLIER
4.50×
COST BASIS vs NET PROCEEDS
PROCEEDS BREAKDOWN
TOTAL FEES
$5.50
TAX ESTIMATE
$768.79
AFTER-TAX PROFIT
+$2,725.71
OP AMOUNT
1,000.00 OP
Live diagram · updates as you type
| OP Purchased | 1,000.00 OP |
| Buy Price per OP | $1.00 |
| Sell Price per OP | $4.50 |
| Gross Investment | $1,000.00 |
| Buy Fee | $1.00 (0.1%) |
| Cost Basis | $1,001.00 |
| Gross Proceeds | $4,500.00 |
| Sell Fee | $4.50 (0.1%) |
| Net Proceeds | $4,495.50 |
| Net Profit / Loss | +$3,494.50 |
| Return on Investment | +349.10% |
| Price Multiplier | 4.50× |
| Break-Even Price | $1.00 |
| Tax Estimate | $768.79 (22%) |
| After-Tax Profit | +$2,725.71 |
Enter your total investment in USD — the total amount you spent to buy OP.
Enter your buy price — OP typically trades between $0.80 and $4.50. The default buy price of $1.00 represents an early post-airdrop or bear-market entry.
Enter your sell price — the current or target price per OP. Use the live market price for unrealised P&L.
Enter your exchange fees — most major exchanges charge 0.1%–0.5% per trade for OP.
Select your holding period — under 1 year for short-term ordinary income rates, over 1 year for long-term capital gains rates.
Select your tax rate. OP airdrop tokens received in the June 2022 or subsequent rounds are taxable as ordinary income at their fair market value on the date received. Subsequent gains are capital gains.
Example: You invested $1,000 in OP at $1.00 per OP and sold at $4.50. OP purchased = $1,000 ÷ $1.00 = 1,000 OP. Gross proceeds = 1,000 × $4.50 = $4,500. Buy fee (0.1%) = $1.00. Sell fee (0.1%) = $4.50. Cost basis = $1,001. Net proceeds = $4,495.50. Net profit = $3,494.50. ROI = 349.10%. Break-even price = $1.0020. At 22% short-term tax rate: tax = $768.79, after-tax profit = $2,725.71.
| NAME | FORMULA | DESCRIPTION |
|---|---|---|
| OP Amount | Investment ÷ Buy Price | OP tokens purchased for your investment |
| Cost Basis | Investment + (Investment × Buy Fee %) | Total cost including buy-side exchange fee |
| Gross Proceeds | OP Amount × Sell Price | Total value before sell fee deduction |
| Net Proceeds | Gross Proceeds − (Gross Proceeds × Sell Fee %) | Amount received after sell-side fee |
| Net P&L | Net Proceeds − Cost Basis | Actual profit or loss after all fees |
| ROI | (Net P&L ÷ Cost Basis) × 100 | Return on investment as a percentage |
| Break-Even | Cost Basis ÷ (OP Amount × (1 − Sell Fee %)) | Sell price needed to exactly recover your cost basis |
| RetroPGF | Citizens House allocates retroactive grants to past contributors | Retroactive Public Goods Funding — Optimism's novel mechanism rewarding proven ecosystem value |
| Tax Estimate | max(Net P&L, 0) × Tax Rate | Estimated capital gains tax on profitable trades |
| After-Tax Profit | Net P&L − Tax Estimate | Profit remaining after estimated tax payment |
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Last updated: April 29, 2026 · Formula verified by EagleCalculator team · Eagle-eyed accuracy for every calculation.