REPLIGEN CORP (RGEN) Options Statistics & Positioning

REPLIGEN CORP (RGEN) options trade at a 30-day at-the-money implied volatility of 54.1%, an IV rank of 29 out of 100 over the past year. The options market prices a ±$10.72 (±7.5%) move in RGEN for the front expiration. Max pain sits at $125 and the put/call open interest ratio is 1.73. Statistics are computed by OptiView from delayed OPRA options data and refresh every trading day.

Data as of Jul 10, 2026, 8:00 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.

Last close

$143.09

52-week range

$103.10 – $172.13

ATM IV (30d)

54.1%

IV rank

29 / 100

Low

Expected move

±$10.72 (±7.5%)

Put/call OI

1.73

Put-heavy

Max pain

$125

↓ 12.6% below close

Next earnings

Aug 2, 2026

Most Active RGEN Contracts

Contract	Expiration	DTE	Last	IV	Volume
RGEN $145 call	Jul 17, 2026	7d	$3.80	54.1%	3
RGEN $150 call	Jul 17, 2026	7d	$1.90	52.9%	2
RGEN $140 call	Aug 21, 2026	42d	$13.00	59.9%	2
RGEN $175 call	Aug 21, 2026	42d	$2.55	53.8%	1
RGEN $180 call	Aug 21, 2026	42d	$1.85	50.1%	1

See all active RGEN contracts →

Explore RGEN Options Statistics

RGEN Implied Volatility

54.1% ATM IV (30d)

An IV rank of 29 places implied volatility in the lower part of its 52-week range.

Full implied volatility analysis →

RGEN Open Interest

1.73 put/call OI ratio

3,055 calls and 5,284 puts outstanding across all expirations.

Full open interest analysis →

RGEN Max Pain

$125 max pain

12.6% below the last close — see how max pain has moved over the past year.

Full max pain analysis →

RGEN Gamma Exposure

-$14.51M net GEX

Negative dealer gamma — hedging can currently amplify price swings.

Full gamma exposure analysis →

RGEN Options Volume

12 contracts traded

Put/call volume ratio 0.00 — plus contracts running far above their usual volume.

Full volume & flow analysis →

RGEN Most Active Options

$145 top volume strike

The 25 most actively traded RGEN contracts with price, IV, greeks, and volume vs. average.

Full active contracts analysis →

Upcoming Earnings

RGEN's next expected earnings date is Aug 2, 2026. Options currently price a ±$10.72 (±7.5%) move for the front expiration.

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RGEN Options FAQ

When is RGEN's next earnings date?

RGEN's next expected earnings date is Aug 2, 2026. Options currently price a ±$10.72 (±7.5%) move for the front expiration.

How often is RGEN options data on this page updated?

All RGEN statistics on this page are computed by OptiView from delayed OPRA options data and refresh every trading day after the session close.

Where can I see RGEN max pain, open interest, and implied volatility in detail?

OptiView publishes dedicated RGEN pages for implied volatility, max pain, open interest, gamma exposure, options volume, and the most active contracts — each with charts, history, and a plain-English explanation of what the numbers mean.

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.