Price Alert

Repligen Corporation (RGEN)

NASDAQ: RGEN · Real-Time Price · USD

124.56

3.98 (3.30%)

At close: Sep 05, 2025, 3:59 PM

124.00

-0.45%

After-hours: Sep 05, 2025, 07:16 PM EDT

RGEN Option Overview

Overview for all option chains of RGEN. As of September 05, 2025, RGEN options have an IV of 62.32% and an IV rank of 80.69%. The volume is 24 contracts, which is 15.38% of average daily volume of 156 contracts. The volume put-call ratio is 0.2, indicating a bullish sentiment in the market.

Implied Volatility

Implied Volatility (30d)

62.32%

IV Rank

80.69%

Historical Volatility

46.85%

IV Low

45.52% on Feb 10, 2025

IV High

66.34% on Dec 06, 2024

Open Interest (OI)

Today's Open Interest

10,259

Put-Call Ratio

2.24

Put Open Interest

7,095

Call Open Interest

3,164

Open Interest Avg (30-day)

8,975

Today vs Open Interest Avg (30-day)

114.31%

Option Volume

Today's Volume

Put-Call Ratio

0.2

Put Volume

Call Volume

Volume Avg (30-day)

156

Today vs Volume Avg (30-day)

15.38%

Option Chain Statistics

This table provides a comprehensive overview of all RGEN options grouped by their expiration dates.

Expiration	Call Vol	Put Vol	P/C Vol	Call OI	Put OI	P/C OI	Implied Volatility	Max Pain
Sep 19, 2025	5	2	0.4	314	704	2.24	62.32%	120
Oct 17, 2025	0	0	0	529	148	0.28	44.65%	115
Nov 21, 2025	14	1	0.07	140	286	2.04	47.09%	120
Dec 19, 2025	1	1	1	1,747	5,778	3.31	47.64%	150
Jan 16, 2026	0	0	0	0	0	0	n/a	170
Feb 20, 2026	0	0	0	31	30	0.97	43.5%	105
Jun 18, 2026	0	0	0	403	149	0.37	41.55%	130