Market Makers Abuse Short Selling Exemption, Covering Gaps Exposed

Published in Stocks and Investing on Tuesday, August 12th 2025 at 15:45 GMT by WOPRAI
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In the past 20 years (since 2005 with the introduction of RegSho), short selling has come under scrutiny as millions of retail investors have discovered what we have been highlighting since early 2005. Market makers abuse the “market maker’s exemption” and short excessive amounts of shares in your stock without locating, borrowing, paying the rebate or the interest rate to borrow. They are required to cover on the same trading day, and our data proves they do not.

The chart below shows “Daily Short Volume” in Zymeworks Inc. (ZYME), and includes both EXEMPT (market makers) and NON-EXEMPT (everyone else) short sales. We consolidate the tape of all 14 US stock exchanges and purchase the “sell short” trade identifier data directly from the exchanges on a daily basis. This complete view of the trading in your stock shows a vastly different picture than “Total Short Interest”, which only includes non-exempt short sales that have not been covered by the twice per month reporting date. Unfortunately, this misses the majority of the short selling.

This indicates that a Short Squeeze may be starting in shares of Zymeworks Inc. at $12.94, after crossing above the $12.915 Trigger Price. This could signal a buying opportunity, given the right market conditions.

You can find the full report at [ https://www.woprai.com/ ]

Please find the applicable data below, drawn from all major market providers.

Date	Short Volume	Total Volume	Percentage	Squeeze Trigger	$ Value
2025-08-11	178,663	462,727	38.61	12.27	2,192,195
2025-08-08	224,370	872,724	25.71	11.91	2,672,247
2025-08-07	150,825	393,614	38.32	12.15	1,832,524
2025-08-06	369,612	765,833	48.26	12.29	4,542,531
2025-08-05	156,703	380,252	41.21	12.51	1,960,355
2025-08-04	114,098	289,949	39.35	12.6	1,437,635
2025-08-01	132,272	637,973	20.73	12.46	1,648,109
2025-07-31	102,708	335,717	30.59	12.63	1,297,202
2025-07-30	163,544	401,368	40.75	13.32	2,178,406
2025-07-29	128,329	357,396	35.91	13.43	1,723,458
2025-07-28	112,786	285,290	39.53	13.53	1,525,995
2025-07-25	85,487	248,388	34.42	13.49	1,153,220
2025-07-24	145,079	318,686	45.52	14.08	2,042,712
2025-07-23	95,454	242,756	39.32	14.33	1,367,856
2025-07-22	156,382	339,890	46.01	14.36	2,245,646
2025-07-21	171,051	388,381	44.04	14.29	2,444,319
2025-07-18	167,093	422,901	39.51	14.38	2,402,797
2025-07-17	268,074	729,415	36.75	14.59	3,911,200
2025-07-16	172,094	537,507	32.02	13.36	2,299,176
2025-07-15	91,154	325,191	28.03	13	1,185,002
2025-07-14	131,196	355,074	36.95	13.37	1,754,091
2025-07-11	128,522	362,801	35.42	13.49	1,733,762
2025-07-10	99,802	503,608	19.82	13.62	1,359,303
2025-07-09	139,358	437,090	31.88	13.55	1,888,301
2025-07-08	121,599	395,143	30.77	12.96	1,575,923
2025-07-07	164,405	373,575	44.01	13.02	2,140,553
2025-07-03	109,379	285,969	38.25	13.02	1,424,115
2025-07-02	107,526	288,511	37.27	12.85	1,381,709
2025-07-01	124,876	372,909	33.49	12.42	1,550,960
2025-06-30	139,661	420,695	33.2	12.6	1,759,729
2025-06-27	384,302	1,498,997	25.64	12.45	4,784,560
2025-06-26	101,151	301,420	33.56	12.45	1,259,330
2025-06-25	111,883	310,197	36.07	12.72	1,423,152
2025-06-24	225,857	453,042	49.85	12.81	2,893,228
2025-06-23	193,847	384,819	50.37	12.44	2,411,457
2025-06-20	338,160	821,856	41.15	12.48	4,220,237
2025-06-18	163,897	474,075	34.57	12.6	2,065,102

Total	259,735,974	829,536,492	31.31	12.91	3,353,170,454

* Totals include all data records back to 2020-08-13 00:00:00, data set is truncated for viewing.

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Market Makers Abuse Short Selling Exemption, Covering Gaps Exposed