BLZE short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31

Short % of Float4.5%59,413,000 float shares

Days to Cover1.41,902,309 average daily volume

Open Short Position2,694,870Backblaze, Inc. Class A Common

Change vs Previous+75,850+2.9%

Short interest history

Twice-monthly snapshots of open short positions.

Settlement	Short Position	Change	Change %	Days to Cover	Short % Float
Jul 31, 2026	2,694,870	+75,850	+2.9%	1.4	4.5%
Jul 15, 2026	2,619,020	-135,132	-4.9%	1.1	4.4%
Jun 30, 2026	2,754,152	+1,255,533	+83.8%	1.0	4.6%

Short interest is an open-position snapshot published twice monthly. It is not daily short-sale volume.

Daily off-exchange short volume

FINRA-reported short-sale transaction flow for the last 30 calendar days.

Trade Date	Short Volume	Short Exempt	FINRA Total	Short Volume %	Facilities
Aug 21, 2026	635,065	8,016	1,166,042	54.5%	3
Aug 20, 2026	4,428,993	21,733	5,999,083	73.8%	3
Aug 19, 2026	1,633,537	70,277	2,765,531	59.1%	3
Aug 18, 2026	287,114	9,922	765,579	37.5%	3
Aug 17, 2026	362,314	34,217	1,154,938	31.4%	3
Aug 14, 2026	459,738	22,915	1,158,144	39.7%	3
Aug 13, 2026	520,212	650	1,289,824	40.3%	3
Aug 12, 2026	391,475	133	934,278	41.9%	3
Aug 11, 2026	289,905	5,302	1,452,058	20.0%	3
Aug 10, 2026	781,889	3,437	1,795,615	43.5%	3
Aug 7, 2026	506,959	24,013	1,033,776	49.0%	3
Aug 6, 2026	494,545	110,051	1,193,619	41.4%	3
Aug 5, 2026	1,005,383	151,442	2,570,569	39.1%	3
Aug 4, 2026	2,304,415	133,045	5,709,216	40.4%	3
Aug 3, 2026	904,184	4,125	1,604,277	56.4%	3
Jul 31, 2026	544,468	220	1,009,586	53.9%	3
Jul 30, 2026	514,150	4,426	797,868	64.4%	3
Jul 29, 2026	222,273	12,249	442,848	50.2%	3
Jul 28, 2026	415,509	42,615	1,171,799	35.5%	3
Jul 27, 2026	378,399	2,649	769,087	49.2%	3
Jul 24, 2026	300,722	780	825,677	36.4%	3

Daily short volume is transaction flow reported through FINRA facilities. It does not measure open short positions and is not consolidated exchange-wide volume.