REPLIGEN CORP (RGEN) Most Active Options
The 15 most actively traded REPLIGEN CORP (RGEN) option contracts at the latest daily snapshot, ranked by volume. Each row shows the contract's price, implied volatility, delta, open interest, and how today's volume compares with its own 30-day average — click a contract to analyze it in the OptiView platform.
Data as of Aug 24, 2026, 3:55 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.
Most Active RGEN Contracts
| Contract | Expiration | DTE | Last | IV | IV rank (30d) | Delta | Open interest | Volume | vs 30d avg |
|---|---|---|---|---|---|---|---|---|---|
| RGEN $195 call | Sep 18, 2026 | 25d | $2.90 | — | — | — | 0 | 24 | — |
| RGEN $185 call | Sep 18, 2026 | 25d | $6.40 | — | 6 | — | 7 | 17 | 3.9× avg |
| RGEN $165 put | Sep 18, 2026 | 25d | $2.25 | 500.0% | 100 | 0.00 | 14 | 17 | 0.7× avg |
| RGEN $190 call | Sep 18, 2026 | 25d | $5.00 | — | — | — | 4 | 5 | — |
| RGEN $170 call | Dec 17, 2027 | 480d | $50.19 | — | — | — | 0 | 4 | — |
| RGEN $180 put | Sep 18, 2026 | 25d | $7.00 | — | 51 | — | 4 | 2 | 2.7× avg |
| RGEN $190 put | Sep 18, 2026 | 25d | $12.90 | — | — | — | 0 | 2 | — |
| RGEN $145 call | Dec 18, 2026 | 116d | $43.50 | — | 13 | — | 2 | 1 | 3.9× avg |
| RGEN $190 call | Dec 17, 2027 | 480d | $41.30 | — | — | — | 0 | 1 | — |
| RGEN $210 call | Sep 18, 2026 | 25d | $0.69 | 45.8% | 27 | 0.13 | — | 1 | 0.3× avg |
| RGEN $170 put | Sep 18, 2026 | 25d | $4.05 | — | 52 | — | 1 | 1 | 1.3× avg |
| RGEN $185 put | Sep 18, 2026 | 25d | $10.20 | — | 61 | — | 2 | 1 | 6.8× avg |
| RGEN $165 put | Oct 16, 2026 | 53d | $5.59 | 44.8% | 4 | -0.25 | 0 | 1 | 0.3× avg |
| RGEN $190 call | Nov 20, 2026 | 88d | $13.70 | — | 75 | — | 8 | 1 | 1.3× avg |
| RGEN $170 put | Nov 20, 2026 | 88d | $11.00 | — | — | — | 0 | 1 | — |
Ranked by volume at the latest daily snapshot. "vs 30d avg" compares today's volume with the contract's own 30-day average.
The most active RGEN contract today is the $195 call expiring in 25 days, with 24 contracts traded. Calls dominate the most-active list (8 of the top 15), showing where trading interest concentrates.
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RGEN Options FAQ
Which RGEN option contract is most active today?
The most traded RGEN contract is the $195 call expiring Sep 18, 2026, with 24 contracts traded as of Aug 24, 2026.
How does OptiView rank the most active RGEN options?
The table lists the 15 RGEN contracts with the highest volume at the latest daily snapshot, alongside price, implied volatility, delta, open interest, and each contract's volume versus its own 30-day average.
Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.
Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.