RiverPark Long/Short Opportunity Fund (RLSFX), August 2012

By David Snowball

Objective and Strategy

The fund pursues long-term capital appreciation while managing downside volatility by investing, long and short, primarily in U.S. stocks.  The managers describe the goal as pursuing “above average rates of return with less volatility and less downside risk as compared to U.S. equity markets.” They normally hold 40-60 long positions in stocks with “above-average growth prospects” and 40-75 short positions in stocks representing firms with challenged business models operating in declining industries.   They would typically be 50-60% net long, though their “target window” is 20-70%.  They invest in stocks of all capitalizations and can invest in non-U.S. stocks but the managers do not view that as a primary focus.


RiverPark Advisors, LLC. Executives from Baron Asset Management, including president Morty Schaja, formed RiverPark in July 2009.  RiverPark oversees the six RiverPark funds, though other firms manage three of them.  RiverPark Capital Management runs separate accounts and partnerships.  Collectively, they have $567 million in assets under management, as of July 31, 2012.


Mitch Rubin, a Managing Partner at RiverPark and their CIO.  Mr. Rubin came to investing after graduating from Harvard Law and working in the mergers and acquisitions department of a law firm and then the research department of an investment bank.  The global perspective taken by the M&A people led to a fascination with investing and, eventually, the opportunity to manage several strategies at Baron Capital.  Rubin also manages the RiverPark Large Cap Growth Fund and co-manages Small Cap Growth.  He’s assisted by RiverPark’s CEO, Morty Schaja, and Conrad van Tienhoven, a long-time associate of his and co-manager on Small Cap Growth.

Management’s Stake in the Fund

The managers and other principals at RiverPark have invested about $4.2 million in the fund, as of July 2012.  Mr. Schaja describes it as “our favorite internal fund” and object of “the greatest net investment of our own money.”

Opening date

March 30, 2012.  The fund started life as a hedge fund on September 30, 2009 then converted to a mutual fund in March 2012.  The hedge fund’s “investment policies, objectives, guidelines and restrictions were in all material respects equivalent to the Fund’s.”

Minimum investment


Expense ratio

1.75% for institutional class shares and 2.00% for retail class shares, after waivers, on assets of $46.4 million, as of July 2023. 


All long-short funds have about the same goal: to provide a relatively large fraction of the stock market’s long-term gains with a relatively small fraction of its short-term volatility.  They all invest long in what they believe to be the most attractively valued stocks and invest short, that is bet against, the least attractively valued ones.  Many managers imagine their long portfolios as “offense” and their short portfolio as “defense.”

That’s the first place where RiverPark stands apart.  Mr. Rubin intends to “always play offense.”  He believes that RiverPark’s discipline will allow him to make money, “on average and over time,” on both his long and short portfolios.  Most long-short managers, observing that the stock market rises more often than it falls and that a rising market boosts even bad stocks, expect to lose money in the long-term on their short positions even while the shorts offer important protection in falling markets.

How so?  RiverPark started with the recognition that some industries are in terminal decline because of enduring, secular changes in society.  By identifying what the most important enduring changes were, the managers thought they might have a template for identifying industries likely to rise over the coming decades and those most likely to decline.  The word “decade” here is important: the managers are not trying to identify relatively short-term “macro” events (e.g., the failure of the next Eurozone bailout) that might boost or depress stocks over the next six to 18 months.  Their hope is to identify factors which are going to lift up or grind down entire industries, year after year, for as far as the eye could see.

And that establishes a second distinction for RiverPark: they’re long-term investors who have been in the industry, and have been together, long enough (17 years so far) to learn patience.  They’re quite willing to short a company like JCPenney even as other investors frantically bid up the share price over the arrival of a new management team, new marketing campaign or a new pricing scheme.  They have reason to believe that Penney “is a struggling, sunset business attempting to adapt to . . . changes” in a dying industry (big mall-based department stores).  The enthusiasm of other investors pushed Penney’s stock valuation to 40-times earnings, despite the fact that “our research with vendors, real estate professionals, and consumers has produced no evidence to indicate that any of the company’s plans were actually working.  In fact, we have seen the opposite.  The pricing strategy has proven to be confusing, the advertising to be ineffective, and the morale at the company to be poor.”

Finally, they know the trajectory of the firms they cover.  The team started in small cap investing, later added large caps and finally long-short strategies.  It means that there are firms which they researched intensively when they were in their small cap growth products, which grew into contributors in the large cap growth fund, were sold as they became mature firms with limited growth prospects, and are now shorted as they move into the sunset.   This has two consequences.  They have a tremendous amount of knowledge from which to draw; Mr. van Tienhoven notes that they have records of every trade they’ve made since 1997.  And they have no emotional attachment to their stocks; they are, they tell me, “analysts and not advocates.”  They will not overpay for stocks and they won’t hold stocks whose prospects are no longer compelling.  They been known to “work on a company for 15 years that we love but that we’ve never owned” because the valuations have never been compelling.  And they know that the stocks that once made them a great deal of money as longs may inevitably become candidates for shorting, which will allow them to again contribute to the fund’s shareholders.

All of which is fine in theory.  The question is: can they pull it off in practice?

Our best clue comes from Mr. Rubin’s long public track record.  RLSFX is his eighth fund that he’s either managed or co-managed.  Of those, seven – dating back to 1995 – have met and in many cases substantially exceeded its benchmark either during his tenure or, in the case of current funds, from inception through the end of the first quarter of 2012.  That includes five long-only products and two long-short funds. At the point of its conversion to a mutual fund, the RiverPark Opportunity Fund LLC was only half as volatile as the S&P 500 whether measured by maximum drawdown (that is, the greatest peak to trough fall), downmarket performance or worst quarter performance.  The fund returned 14.31% from inception, barely trailing the S&P’s 14.49%. The combination of the same returns with a fraction of the volatility gave the fund an outstanding Sharpe ratio: 4.2%.  He is, it’s clear, quite capable of consistently and patiently executing the strategy that he’s described.

There are a couple potential concerns which investors need to consider.

  1. The expense ratio, even after waivers, is a daunting 3.5%.  About 40% of the expenses are incurred by the fund’s short positions and so they’re beyond the manager’s immediate control.
  2. The fund’s performance after conversion to a mutual fund is more modest than its preceding performance.  The fund gained 21% in the first quarter of 2012 while still a hedge fund, smashing its peer group’s 4.8% return.  In the four months since conversion, it leads its peers by a more modest 0.8%.  Mr. Rubin is intensely competitive and intensely aware of his fund’s absolute and relative performance.  He says that nothing about the fund’s operation changed in the transition and notes that no fund outperforms every quarter in every kind of market, but “we’ve never underperformed for very long.”

Bottom Line

Mr. Rubin is an experienced professional, working on a fund that he thinks of as the culmination of the 17 years of active management, research and refinement.  Both of his long-short hedge funds offered annual returns within a few tenths of a percent of the stock market’s but did so with barely half of the volatility.   Even with the drag of substantial expenses, RLSFX has earned a place on any short-list of managed volatility equity funds.

Fund website

RiverPark Long-Short /Opportunity Fund

Fact Sheet

© Mutual Fund Observer, 2012. All rights reserved. The information here reflects publicly available information current at the time of publication. For reprint/e-rights contact us.
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About David Snowball

David Snowball, PhD (Massachusetts). Cofounder, lead writer. David is a Professor of Communication Studies at Augustana College, Rock Island, Illinois, a nationally-recognized college of the liberal arts and sciences, founded in 1860. For a quarter century, David competed in academic debate and coached college debate teams to over 1500 individual victories and 50 tournament championships. When he retired from that research-intensive endeavor, his interest turned to researching fund investing and fund communication strategies. He served as the closing moderator of Brill’s Mutual Funds Interactive (a Forbes “Best of the Web” site), was the Senior Fund Analyst at FundAlarm and author of over 120 fund profiles. David lives in Davenport, Iowa, and spends an amazing amount of time ferrying his son, Will, to baseball tryouts, baseball lessons, baseball practices, baseball games … and social gatherings with young ladies who seem unnervingly interested in him.