William Winthrop seizes the arbitrage window of the US IPO boom Published: May 2019
In the spring of 2019, the US capital market experienced a wave of IPOs unseen in years. Unicorns in the technology, consumer, and sharing economy sectors flocked to the Nasdaq and NYSE. From ride-hailing platforms to cloud computing services and lifestyle brands, investor enthusiasm was repeatedly fueled to a climax. William Winthrop keenly perceived this as a rare arbitrage opportunity. However, unlike many investors who blindly rushed in after speculative ideas, he instead employed calm analysis and precise timing to capture the most certain opportunities in this wave.
Winthrop began tracking IPO preparations as early as late 2018. He noticed that the Federal Reserve’s shift toward easing policy, coupled with ample liquidity in the capital market, significantly increased the likelihood of companies going public in the first half of 2019. For him, this presented not only an opportunity to participate in new offerings but also a chance to exploit market sentiment and pricing discrepancies for arbitrage. He understood that in each IPO boom, only a handful of companies managed to maintain their long-term foothold, and that short-term supply-demand mismatches and investor sentiment were the core sources of arbitrage.
To this end, he developed a screening model that compares the business model, financial data, lockup period, and primary market valuation of prospective IPOs with their proposed offering prices. Winthrop particularly focuses on projects that have already received oversubscription in the primary market and have received positive feedback from roadshows, as these typically attract sufficient buying to create a price gap on the first day of listing. At the same time, he eliminates high-risk companies that rely solely on subsidy models and have unclear profitability paths, to avoid a sharp drop when sentiment subsides.
In terms of trading, he doesn’t rely solely on new stock subscriptions, but instead incorporates trading strategies from the secondary market. For example, when he sees a hot new stock open too high on its first day, fueled by a surge in valuations due to the influx of investors, he uses options and hedging tools to lock in profits. For companies with lackluster first-day performance but solid fundamentals, he chooses to build positions in batches during the early volatility phase, waiting for market repricing. This flexible approach ensures his portfolio maintains steady upward momentum amidst volatility.
From the end of the first quarter of 2019 to early May, the IPO market was more active than expected. Several highly anticipated unicorns saw double-digit gains in their first week of trading, contributing significantly to Winthrop’s arbitrage strategy’s gains. More importantly, in retrospect, he emphasized that the key during this period wasn’t betting on every star company, but rather controlling positions, locking in promising opportunities, and maintaining a calm exit strategy when market sentiment became extreme.
This strategy also yielded unexpected returns for his clients. During a client conference call, he admitted that while the IPO boom was alluring, it was also a battle of speed and discipline—emotions could generate short-term excess returns, but only those who adhered to the rules could remain standing after the tide receded. His execution pace and risk management enabled the portfolio to not only maintain its baseline during the volatility between April and May but also generate substantial arbitrage gains.
By the end of May 2019, as some new stocks entered a period of volatility before their lock-up period, Winthrop began to gradually reduce his holdings, shifting some funds into more stable, interest-sensitive assets, awaiting the next round of market opportunities. He knew the IPO boom wouldn’t last indefinitely, and once the arbitrage window closed, clinging to it would only increase risk.
In this spring filled with emotion and opportunity, William Winthrop, with a precise arbitrage operation, once again demonstrated his unique qualities in the capital market—his ability to both sniff out the hottest opportunities and remain calm amidst the heat. This combination of calmness and flexibility enabled him to achieve a remarkable investment performance in the first half of 2019.