Hedge Fund - Lonestar Capital Management

Jerome L. Simon Bio, Returns, AUM, Net Worth

Lonestar Capital Management LLC operates as an investment advisory firm based in San Francisco. The firm distinguishes itself by providing comprehensive commodity pool operating and trading advisory services to its clientele.

Jerome L. Simon founded Lonestar Capital Management in the summer of 1995. Based in San Francisco, this activist hedge fund specializes in special situations, distressed investing, energy, and leveraging capital structures to capitalize on mispriced securities. Before establishing Lonestar, Simon gained valuable experience at Drexel Burnham Lambert in Los Angeles, where he worked in the restructuring advisory group and distressed securities desk in 1989. Subsequently, he worked at two Mill Valley, Calif.-based hedge funds, Paul D. Sonz Partners LP from 1991 to 1992 and Avdan Partners LP from 1993 to 1994. Simon also served as a consultant for Leucadia National Corp., a diversified holding company, from November 1994 to March 1995. Earlier in his career, he was president of a single-asset hotel corporation that underwent Chapter 11 bankruptcy proceedings from 1986 to 1988 and worked as an independent petroleum landman from 1984 to 1985. Simon holds an MBA from Stanford University, which he earned in 1990, and a bachelor’s degree in economics from Claremont McKenna College, completed in 1982.

Lonestar Capital Management is a hedge fund that reported managing $1,119,813,732 in 13F securities as of its last filing in Q1 2024. With a top 10 holdings concentration of 93.48%, the firm's largest holding is Invesco QQQ Trust, Series 1, with 5,000 shares held.

Jerome L. Simon
Fund Profile
Filing Period:
Fund Name: Lonestar Capital Management
Manager Jerome L. Simon
Portfolio Value $1,119,813,732
Change This QTR +1.64%
Filing Period:
Last update:
No. Security Ticker Shares Value Activity % Port History
1.
Invesco Qqq TrPUTPUT
5,000 $222,005,000 +25% 19.82%
2. SPY 4,000 $209,228,000 18.68%
3. IEF 7,000 $147,210,000 NEW 13.14%
4. IEF 15,000 $141,930,000 12.67%
5.
Ishares TrPUTPUT
14,000 $108,822,000 NEW 9.71%
Latest 13D & 13G Filings
Symbol Company Filed By Filing Date Filing
2017-09-08
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