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Marathon Petroleum Corp. short interest

Short interest in Marathon Petroleum Corp. was 7.6 million shares at the 31 August 2026 settlement, up 16.6% on the previous settlement, with 3.03 days to cover at an average daily volume of 2.5 million shares, as reported to FINRA.

SettlementShares shortChangeAverage daily volumeDays to cover
31 August 20267,601,383+16.6%2,512,6893.03
14 August 20266,521,760-3.9%2,630,8972.48
31 July 20266,786,536+5.8%2,006,2123.38
15 July 20266,412,255-12.1%2,013,5783.18
30 June 20267,290,864-5.0%2,816,4332.59
15 June 20267,673,768+21.6%2,343,9923.27
29 May 20266,312,262+6.1%2,294,7502.75
15 May 20265,947,128+6.5%2,525,3992.35
30 April 20265,585,954-12.0%2,146,9642.60
15 April 20266,348,348-6.7%2,168,4732.93
31 March 20266,803,010-15.4%3,094,8522.20
13 March 20268,038,630+1.2%3,249,8342.47

FINRA publishes consolidated short interest twice a month, about ten days after each settlement. Days to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.

Source

FINRA equity short interest data, the public dataset.

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