Monthly roundup // FINRA short interest, settlements 2023-10-13 and 2023-10-31

Short interest in October 2023

At the October 31, 2023 settlement, FINRA’s file listed 19,303 securities with 36.38 billion shares held short, +1.0% against the September 29, 2023 month end. The largest single position among exchange-listed names was LCID at 239.7M shares. This is the measured record of one month, not a list of ideas: nothing here says what anyone should do with a security.

What this page reads. Our stored copy of FINRA’s consolidated short interest files for the settlements 2023-09-29 (19,209 rows), 2023-10-13 (19,369 rows) and 2023-10-31 (19,303 rows). The tables use the month-end settlement, 2023-10-31, and measure change against 2023-09-29. Read from the store 2026-11-03; short interest is published about seven business days after each settlement.

Largest short positions at 2023-10-31

By shares held short, among the 4,874 securities in the file with average daily volume of at least 100,000 shares that are not known to trade OTC (1,025 OTC rows left out). Shares, not percent of float: FINRA publishes no float, and a large company carries a large position.

#	Symbol	Issue	Venue	Short shares ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldcurrentShortPositionQuantity As ofsettlement 2023-10-31 Open the source document →	Avg daily vol ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldaverageDailyVolumeQuantity As ofsettlement 2023-10-31 Open the source document →	Days to cover ⊙ INFERENCE — derived by arithmetic SourceShort shares divided by average daily volume, both FINRA fields As ofsettlement 2023-10-31 HowFINRA's own days-to-cover field is floored at 1.00, so the ratio is computed from its two published operands instead. Open the source document →	Change ⊙ INFERENCE — derived by arithmetic SourceShort shares at this settlement against the previous month end As ofsettlement 2023-10-31 against settlement 2023-09-29 HowBoth positions are stored FINRA figures for the same symbol; the percent is (this minus that) over that. Open the source document →
1	LCID	Lucid Group, Inc. Common Stock	Nasdaq NM	239.7M	29.3M	8.2	+10.0%
2	DNA	Ginkgo Bioworks Holdings, Inc.	NYSE	235.9M	16.1M	14.7	+1.0%
3	NKLA	name not recorded	not recorded	181.4M	44.5M	4.1	-7.0%
4	SIRI	SiriusXM Holdings Inc. Common	Nasdaq NM	171.1M	10.1M	17.0	+0.9%
5	PLTR	Palantir Technologies Inc. Cla	Nasdaq NM	155.7M	47.7M	3.3	-7.1%
6	PLUG	Plug Power, Inc. Common Stock	Nasdaq SC	144.6M	23.0M	6.3	+13.1%
7	LUMN	Lumen Technologies, Inc. Commo	Nasdaq NM	141.1M	11.0M	12.9	-8.0%
8	NIO	NIO Inc. American depositary s	NYSE	140.8M	32.2M	4.4	+3.6%
9	F	Ford Motor Company	NYSE	138.0M	70.7M	2.0	-1.8%
10	MPW	name not recorded	not recorded	133.9M	14.0M	9.6	+7.0%
11	SPY	State Street SPDR S&P 500 ETF	NYSE Arca	131.1M	95.3M	1.4	+1.4%
12	CCL	Carnival Corporation Ltd.	NYSE	119.5M	30.3M	3.9	+5.6%
13	SOFI	SoFi Technologies, Inc. Common	Nasdaq NM	117.5M	40.0M	2.9	+4.8%
14	RIG	Transocean LTD.	NYSE	116.1M	14.7M	7.9	-17.6%
15	TLRY	Tilray Brands, Inc. Common Sto	Nasdaq NM	112.0M	12.1M	9.3	-3.0%
16	RTX	RTX Corporation	NYSE	111.5M	15.9M	7.0	+1352.6%
17	XLF	State Street Financial Select	NYSE Arca	107.8M	52.6M	2.0	-12.8%
18	RIVN	Rivian Automotive, Inc. Class	Nasdaq NM	105.2M	30.9M	3.4	+21.4%
19	IWM	iShares Russell 2000 ETF	NYSE Arca	104.9M	41.1M	2.5	+8.2%
20	T	AT&T Inc.	NYSE	104.4M	48.7M	2.1	-9.7%

Longest days to cover at 2023-10-31

Short shares divided by FINRA’s average daily volume, for names trading at least 300,000 shares a day. The floor is the one the short squeeze screener uses.

#	Symbol	Issue	Venue	Short shares ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldcurrentShortPositionQuantity As ofsettlement 2023-10-31 Open the source document →	Avg daily vol ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldaverageDailyVolumeQuantity As ofsettlement 2023-10-31 Open the source document →	Days to cover ⊙ INFERENCE — derived by arithmetic SourceShort shares divided by average daily volume, both FINRA fields As ofsettlement 2023-10-31 HowFINRA's own days-to-cover field is floored at 1.00, so the ratio is computed from its two published operands instead. Open the source document →	Change ⊙ INFERENCE — derived by arithmetic SourceShort shares at this settlement against the previous month end As ofsettlement 2023-10-31 against settlement 2023-09-29 HowBoth positions are stored FINRA figures for the same symbol; the percent is (this minus that) over that. Open the source document →
1	LWLG	Lightwave Logic, Inc. Common S	Nasdaq SC	22.2M	0.5M	43.3	-0.3%
2	MVIS	MicroVision, Inc. Common Stock	Nasdaq SC	50.0M	1.4M	35.9	+10.8%
3	VUZI	Vuzix Corporation Common Stock	Nasdaq SC	11.2M	0.4M	32.0	-4.4%
4	AGL	agilon health, inc.	NYSE	46.4M	1.6M	29.5	+5.7%
5	LYEL	Lyell Immunopharma, Inc. Commo	Nasdaq NM	19.2M	0.7M	28.5	-9.5%
6	ALLO	Allogene Therapeutics, Inc. Co	Nasdaq NM	34.0M	1.2M	27.9	-0.3%
7	RYTM	Rhythm Pharmaceuticals, Inc. C	Nasdaq NM	11.7M	0.4M	27.3	+15.5%
8	DM	name not recorded	not recorded	73.3M	2.8M	25.8	+5.0%
9	CORT	Corcept Therapeutics Incorpora	Nasdaq SC	14.1M	0.5M	25.8	-5.6%
10	TBPH	Theravance Biopharma, Inc. Ord	Nasdaq NM	9.0M	0.4M	25.4	+1.5%
11	SENS	Senseonics Holdings, Inc. Comm	Nasdaq NM	49.3M	1.9M	25.4	+0.3%
12	GCI	name not recorded	not recorded	14.6M	0.6M	24.7	-2.6%
13	INFN	name not recorded	not recorded	44.9M	1.8M	24.5	+2.3%
14	UWMC	UWM Holdings Corporation	NYSE	20.2M	0.8M	24.2	+10.3%
15	BARK	BARK, Inc.	NYSE	10.6M	0.5M	23.4	-7.4%
16	BLND	Blend Labs, Inc.	NYSE	9.6M	0.4M	23.0	-5.6%
17	BMEA	Biomea Fusion, Inc. Common Sto	Nasdaq NM	8.1M	0.4M	22.2	-3.4%
18	MNKD	MannKind Corporation Common St	Nasdaq NM	39.7M	1.8M	21.9	+3.5%
19	PYCR	name not recorded	not recorded	10.8M	0.5M	21.0	+7.6%
20	ASXC	name not recorded	not recorded	18.6M	0.9M	20.4	+4.8%

Largest increases from 2023-09-29 to 2023-10-31

Percent change in shares short, for positions of at least 1,000,000 shares at 2023-09-29 on names trading at least 300,000 shares a day. Of the 2,619 positions that clear both floors, 1,325 grew, 1,294 shrank and 0 did not change.

#	Symbol	Issue	Venue	Short shares ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldcurrentShortPositionQuantity As ofsettlement 2023-10-31 Open the source document →	Avg daily vol ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldaverageDailyVolumeQuantity As ofsettlement 2023-10-31 Open the source document →	Days to cover ⊙ INFERENCE — derived by arithmetic SourceShort shares divided by average daily volume, both FINRA fields As ofsettlement 2023-10-31 HowFINRA's own days-to-cover field is floored at 1.00, so the ratio is computed from its two published operands instead. Open the source document →	Change ⊙ INFERENCE — derived by arithmetic SourceShort shares at this settlement against the previous month end As ofsettlement 2023-10-31 against settlement 2023-09-29 HowBoth positions are stored FINRA figures for the same symbol; the percent is (this minus that) over that. Open the source document →
1	RTX	RTX Corporation	NYSE	111.5M	15.9M	7.0	+1352.6%
2	XRAY	DENTSPLY SIRONA Inc. Common St	Nasdaq NM	11.9M	3.9M	3.1	+211.2%
3	SLS	SELLAS Life Sciences Group, In	Nasdaq SC	3.0M	0.6M	5.3	+180.8%
4	AMAM	name not recorded	not recorded	5.3M	2.3M	2.3	+177.0%
5	VMW	name not recorded	not recorded	10.2M	4.2M	2.4	+170.9%
6	PBRA	Petroleo Brasileiro S.A.-Petro	NYSE	10.3M	7.9M	1.3	+168.8%
7	BMO	Bank of Montreal	NYSE	19.4M	1.1M	17.4	+166.7%
8	NWS	News Corporation Class B Commo	Nasdaq NM	8.3M	1.5M	5.4	+146.9%
9	LULU	lululemon athletica inc. Commo	Nasdaq NM	6.0M	4.8M	1.2	+142.8%
10	BEP	Brookfield Renewable Partners	NYSE	4.0M	0.6M	6.9	+136.6%
11	VFS	VinFast Auto Ltd. Ordinary Sha	Nasdaq NM	9.6M	4.5M	2.1	+135.2%
12	OFIX	Orthofix Medical Inc. Common S	Nasdaq NM	3.0M	1.0M	3.1	+133.3%
13	NEWR	name not recorded	not recorded	2.3M	1.2M	1.9	+126.6%
14	EURN	name not recorded	not recorded	3.1M	1.7M	1.8	+125.7%
15	HLN	Haleon plc American Depositary	NYSE	21.0M	4.8M	4.4	+123.2%

Largest decreases from 2023-09-29 to 2023-10-31

#	Symbol	Issue	Venue	Short shares ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldcurrentShortPositionQuantity As ofsettlement 2023-10-31 Open the source document →	Avg daily vol ⊙ EVIDENCE — filed/published fact SourceFINRA consolidated short interest, as stored by our ingest FieldaverageDailyVolumeQuantity As ofsettlement 2023-10-31 Open the source document →	Days to cover ⊙ INFERENCE — derived by arithmetic SourceShort shares divided by average daily volume, both FINRA fields As ofsettlement 2023-10-31 HowFINRA's own days-to-cover field is floored at 1.00, so the ratio is computed from its two published operands instead. Open the source document →	Change ⊙ INFERENCE — derived by arithmetic SourceShort shares at this settlement against the previous month end As ofsettlement 2023-10-31 against settlement 2023-09-29 HowBoth positions are stored FINRA figures for the same symbol; the percent is (this minus that) over that. Open the source document →
1	PIXY	name not recorded	not recorded	0.0M	0.3M	0.0	-99.6%
2	GOF	Guggenheim Strategic Opportuni	NYSE	0.1M	1.9M	0.0	-95.8%
3	SPBO	State Street SPDR Portfolio Co	NYSE Arca	0.2M	0.4M	0.4	-95.6%
4	LIFW	name not recorded	not recorded	0.5M	2.6M	0.2	-95.0%
5	EZGO	EZGO Technologies Ltd. Ordinar	Nasdaq SC	0.5M	5.3M	0.1	-91.5%
6	FEMY	Femasys Inc. Common Stock	Nasdaq SC	0.4M	1.8M	0.2	-90.8%
7	ARR	ARMOUR Residential REIT, Inc.	NYSE	3.3M	2.2M	1.5	-85.0%
8	UVIX	2x Long VIX Futures ETF	Cboe BZX	0.9M	3.5M	0.3	-84.9%
9	AIV	Apartment Investment and Manag	NYSE	1.8M	1.2M	1.5	-81.8%
10	BLRX	BioLineRx Ltd. American Deposi	Nasdaq SC	0.5M	0.4M	1.4	-80.8%
11	TRP	TC Energy Corporation	NYSE	24.2M	3.1M	7.9	-79.8%
12	BSV	Vanguard Short-Term Bond ETF	NYSE Arca	0.7M	3.0M	0.2	-78.8%
13	USFR	WisdomTree Floating Rate Treas	NYSE Arca	0.8M	5.1M	0.2	-75.4%
14	EWJ	iShares MSCI Japan ETF	NYSE Arca	3.9M	6.0M	0.7	-74.0%
15	SVIX	-1x Short VIX Futures ETF	Cboe BZX	0.3M	3.8M	0.1	-73.4%

How to read a month of short interest

A short position is a count of borrowed shares sold and not yet bought back, reported by brokers twice a month. A large count can be a hedge against a convertible bond, an index arbitrage leg or a pair trade, so the tables show size and change, never intent. Days to cover says how many average sessions of volume the position equals; it is a ratio, not a forecast of a squeeze.

The change tables compare share counts, so a corporate action moves them as surely as trading does. A reverse split shrinks a position without anyone buying shares back, and a spin-off or merger can add one overnight. Before reading a large change as a decision by short sellers, check the company’s filings for the same weeks.

Names and venues come from the FINRA rows themselves. Rows stored before August 2026 carry neither, so they are read from the newest stored row for the same symbol; where no such row exists the table says the venue is not recorded instead of guessing it.

FINRA is the owner and source of this short interest and short sale volume data. Free on every plan; not for redistribution.

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