Health Care

Repligen Corporation (RGEN) options and signal

Figures as of 28 Sep 2026

RGEN is Repligen Corporation, a Health Care name the model ranks every trading day. The options figures are from the close on 28 Sep 2026. The model's figures are from 25 Sep 2026, one trading day behind the latest, as the Free plan shows them. Every model figure is paper trading.

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At a glance

Figure	Value	Date
IV rank	56 of 100	28 Sep
At the money IV	51.1%	28 Sep
Priced move to 16 Oct	11.3% down, 10.7% up	28 Sep
Call wall and put wall	200 and 120	28 Sep
Signal and the desk's view	No signal, view neutral	25 Sep
Last close	194.09	28 Sep
Next report	3 Nov 2026	28 Sep

Options Snapshot

RGEN's IV rank is 56 of 100 on 28 Sep 2026.

Figure	Value
IV rank	56 of 100
At the money IV	51.1%, near month, 18 days
Put/call ratio, open interest	0.71
Call open interest, strikes captured near the price	5,560 contracts
Put open interest, strikes captured near the price	3,930 contracts
Cost to trade at the money	Fair, 29.4% of the option's mid price

IV rank is where the at the money IV sits among RGEN's own weekly readings, 0 the lowest and 100 the highest.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Priced Range

On 28 Sep 2026, RGEN options priced a move of 11.3 percent down and 10.7 percent up by 16 Oct 2026.

Expiry	Days	Down	Up	Range
16 Oct 2026	18	11.3%	10.7%	172.09 to 214.89
20 Nov 2026	53	20.6%	21.1%	154.09 to 235.09
18 Dec 2026	81	25.6%	24.7%	144.39 to 242.09
19 Feb 2027	144	31.3%	32.6%	133.29 to 257.39

The range is one standard deviation either side of the close of 194.09, as the option prices imply it.

A priced move restates option prices at the close and says nothing certain about where the price goes.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Gamma Map

On 28 Sep 2026, RGEN's call wall is the 200 strike and its put wall is the 120 strike.

Figure	Value
Call wall, most open call gamma	200
Put wall, most open put gamma	120
Flip strike, where net gamma changes sign	155.54
Net dollar gamma, calls minus puts	$2.34 million
Total dollar gamma, both sides	$3.26 million
Close	194.09

Dollar gamma is stated for a one percent move in the price.

Net is calls minus puts under the standard convention, not a record of who holds the contracts.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Volatility History

On 28 Sep 2026, RGEN's at the money IV is 51.1 percent against 20 day realized volatility of 39.3 percent.

Figure	Value
At the money IV	51.1%
Realized volatility, 20 trading days	39.3%
Realized volatility, 60 trading days	43.4%
IV against its own weekly record	In the middle
Weekly readings on record	805, from 8 Oct 2010
Weeks the price moved more than the one week priced move	32.6% of 236 weeks

Realized volatility is worked out from the daily closes the desk holds, not from the option chain.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Volatility Weather

On 28 Sep 2026, RGEN's at the money IV runs from 51.1 percent at 18 days to 52.0 percent at 144 days.

Days to expiry	At the money IV
18	51.1%
53	55.5%
81	54.3%
144	52.0%

Near and far expiries price about the same volatility, a flat term structure.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Volatility Smile

On 28 Sep 2026, at the 53 day expiry, RGEN's IV ten percent below the price sits 0.4 points below at the money IV.

Strike area	Implied volatility	Against at the money
10% below the price	55.1%	-0.4 points
At the money	55.5%	0.0 points
10% above the price	56.1%	+0.6 points

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Volatility Surface

On 28 Sep 2026, RGEN's surface spans 4 expiries out to 144 days, with IV from 49.9 to 58.3 percent near the price.

Figure	Value
Expiries captured	4
Nearest expiry	16 Oct 2026, 18 days
Farthest expiry	19 Feb 2027, 144 days
Points within 10% of the price, 7 days out or more	28
Lowest IV among them	49.9%
Highest IV among them	58.3%

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Expiry Ladder

On 28 Sep 2026, RGEN has 4 captured expiries, from 16 Oct 2026 to 19 Feb 2027.

Expiry	Days	At the money IV	Call open interest	Put open interest
16 Oct 2026	18	51.1%	3,362	431
20 Nov 2026	53	55.5%	354	1,440
18 Dec 2026	81	54.3%	1,622	2,002
19 Feb 2027	144	52.0%	223	60

Open interest is summed over the strikes captured near the price on each expiry.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Strike Table

On 28 Sep 2026, RGEN's largest open interest sits at the 200 strike, with 3,218 contracts across the captured expiries.

Strike	Call open interest	Put open interest	Total
200	3,216	2	3,218
120	0	2,746	2,746
160	1,078	119	1,197
165	320	63	383
170	37	237	274
190	158	13	171

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Since Yesterday

From 25 Sep 2026 to 28 Sep 2026, RGEN's at the money IV moved from 56.5 percent to 51.1 percent.

Figure	25 Sep	28 Sep	Change
At the money IV	56.5%	51.1%	-5.4 points
Open interest, strikes captured near the price	10,554	9,494	-1,060
Put/call ratio, open interest	0.85	0.71	-0.15

Open interest changes cannot identify buyers or sellers.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Changed Hands

On 28 Sep 2026, 4,032 RGEN option contracts traded, 1.0 times its own recent average.

Figure	Value
Calls traded	1,840
Puts traded	2,192
Against its recent average	1.0 times
Busier than	19 of its last 20 trading days
Open interest, whole chain	13,749 contracts
Volume to open interest	0.29
Unusual volume flag	Yes, 1 contract traded well above open interest
Largest flagged contract	The 200 call expiring 18 Dec, 218 traded against 107 open

Traded volume and open interest are shown side by side and never combined. Open interest changes cannot identify buyers or sellers.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Positioning Replay

The replay holds 33 trading days of RGEN's option positioning, from 11 Aug 2026 to 28 Sep 2026.

Date	Close	Net dollar gamma	Top call strike	Top put strike
11 Aug 2026	164.77	$346,793	165	135
21 Sep 2026	180.71	$39,826	165	170
28 Sep 2026	194.09	$2.34 million	200	120

Each frame restates one nightly capture. Net is calls minus puts, a convention, not who holds the contracts.

From the option chain at the close on 28 Sep 2026. Current on every plan.

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Read-out

On 25 Sep 2026 the desk's view of RGEN was neutral, paper trading.

Figure	Value
Side	Neutral at 45 trading days, no signal
Level above the close	198.86, the swing high of 28 Sep 2026
Level below the close	185.34, the swing low of 25 Aug 2026
Strategy family	Iron condor (sell both sides, defined risk)
Price target	None. The desk has no price model.

The levels are prices the shares turned at on the chart, with the date of each.

Paper trading. The model's figures from 25 Sep 2026, one trading day behind, as the Free plan shows them.

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Rank by Timeframe

On 25 Sep 2026 RGEN sat at the 21st percentile of the model's 45 trading day ranking, paper trading.

Timeframe	Percentile	Side
10 trading days	74 of 100	Neutral
20 trading days	17 of 100	Bearish
45 trading days	21 of 100	Neutral

100 is the top of the ranking. A name in the middle three fifths is neutral.

Paper trading. The model's figures from 25 Sep 2026, one trading day behind, as the Free plan shows them.

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Timeframe Agreement

On 25 Sep 2026 RGEN's near timeframes were bearish and its long timeframe was neutral, paper trading.

Group	Timeframes	Side	On that side
Near	10 day, 20 day	Bearish	1 of 2
Long	45 day	Neutral	0 of 1

Paper trading. The model's figures from 25 Sep 2026, one trading day behind, as the Free plan shows them.

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Signal History

On 25 Sep 2026 RGEN had carried no signal for at least 18 trading days, paper trading.

Trading day	Signal	45 day percentile
25 Sep 2026	None	21 of 100
24 Sep 2026	None	35 of 100
23 Sep 2026	None	49 of 100
22 Sep 2026	None	46 of 100
21 Sep 2026	None	36 of 100
18 Sep 2026	None	25 of 100
17 Sep 2026	None	38 of 100
16 Sep 2026	None	24 of 100

Paper trading. The model's figures from 25 Sep 2026, one trading day behind, as the Free plan shows them.

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Sector Split

On 25 Sep 2026, 32 of 120 Health Care names were bullish and 52 were bearish, paper trading.

Sector	Names	Bullish	Bearish	Neutral
Health Care	120	32	52	36

Paper trading. The model's figures from 25 Sep 2026, one trading day behind, as the Free plan shows them.

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Price Chart

RGEN closed at 194.09 on 28 Sep 2026.

Figure	Value
Last close	194.09
Change over 5 trading days	+7.4%
Change over 21 trading days	+6.6%
Change over 63 trading days	+41.7%
Change over 252 trading days	+59.5%
52 week high	198.86
52 week low	100.99
20 day moving average	176.09
50 day moving average	165.95
200 day moving average	143.00
RSI, 14 days	71

Worked out from the desk's own daily bars, adjusted for share splits.

From the daily bars through 28 Sep 2026. Current on every plan.

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Earnings Radar

RGEN reports next on 3 Nov 2026, a date confirmed by the company.

Figure	Value
Next report	3 Nov 2026, before the open
Date	Confirmed by the company
Move after the report of 28 Jul 2026	+10.9%
Move after the report of 29 Apr 2026	+4.6%
Move after the report of 27 Jan 2026	-2.2%
Move after the report of 29 Apr 2025	-2.9%

Earnings calendar as of 28 Sep 2026. Current on every plan.

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Company Events

RGEN filed 1 current report in the 14 days to 28 Sep 2026, the latest on 15 Sep 2026.

Filed	Report	What it covers
15 Sep 2026	Current report	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Filings as of 28 Sep 2026. Current on every plan.

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Public Filings

Company insiders reported 0 purchases and 2 sales of RGEN in the filings the desk holds.

Filed	Who	Trade	Size
24 Sep 2026	Loeillot Olivier, director, Chief Executive Officer	Sold	8,404 shares, $1.6 million
24 Sep 2026	Loeillot Olivier, director, Chief Executive Officer	Sold	4,542 shares, $862,980

Every filing is reproduced as filed, and each one reaches the public days or weeks after the trade.

Filings as of 28 Sep 2026. Current on every plan.

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Seasonality

In the 23 Septembers on record, RGEN's average change was minus 4.0 percent, and it rose in 39.1 percent of them.

Month	Average change	Middle change	Share of years up	Years
September	-4.0%	-1.4%	39.1%	23
October	+2.8%	-1.9%	43.5%	23
November	+3.5%	-1.5%	43.5%	23

Each figure is a month end to month end change in past years. A past month says nothing certain about the next one.

Monthly history through 28 Sep 2026. Current on every plan.

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Questions

What is RGEN's IV rank?: RGEN's IV rank is 56 of 100 on 28 Sep 2026.
What move are RGEN options pricing?: On 28 Sep 2026, RGEN options priced a move of 11.3 percent down and 10.7 percent up by 16 Oct 2026.
Where are RGEN's call wall and put wall?: On 28 Sep 2026, RGEN's call wall is the 200 strike and its put wall is the 120 strike.
What was the desk's latest view of RGEN on the Free plan?: On 25 Sep 2026 the desk's view of RGEN was neutral, paper trading.
When does RGEN report earnings next?: RGEN reports next on 3 Nov 2026, a date confirmed by the company.

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