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The Incredible Shrinking Market

The Incredible Shrinking Market
Analyst Bio:
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Wholesale market makers have seen their equity market share rise from around a quarter to a third in recent quarters, buoyed in no small part by retail flow. “If you don’t have direct access to these liquidity providers, you’re missing out on a lot of the market,” said Larry Tabb, Head of Market Structure Research, Bloomberg Intelligence. “Their aggregation of order flow also means they know the direction in which the retail segment is pushing particular names. Thus they are gaining an advantage from seeing the flows coming through their pipes.”

These flows add value to the wholesale market-makers, but only in the equity options market do they make their way onto exchange, otherwise being crossed internally.

“In both equities and options, retail investors know their orders will get filled at or inside the National Best Bid and Offer, but the market microstructure of the options market offers more opportunity for price improvement,” said Stino Milito, Co-COO at DASH Financial, a capital markets technology provider. In the options market, the wholesale market-maker will make a price to the retail broker, but the order must be executed via a cross on one of the 11 options exchanges, enabling other market-makers an opportunity to offer price improvement.

Mett Kinak, T. Rowe Price

“It’s a really good environment for these retail investors. But market bifurcation means large institutions don’t engage with retail flow that often,” said Mett Kinak, Global Head of Systematic Trading and Market Structure at T Rowe Price.

PFOF arrangements notwithstanding, retail favourites may not hold strong appeal for long-term investors. Hertz, for example, has a strong retail following before filing for Chapter 11 bankruptcy in May. Whilst retail orders have turbocharged US equity trading volumes this year – rising from around seven billion per day prior to the pandemic to peaks of around 19 billion – this extra liquidity was rarely useful to longer-term investors.

“Some may look at volumes and think we’re in a robust and plentiful market, but many institutions would say it’s difficult to find liquidity right now,” said Kinak. “That bifurcation is frustrating because you ideally want a market where everyone can engage with each other. And with all those retail trades being executed via wholesale market-makers, we also need to ask: what’s the effect on price discovery and overall accessible liquidity?”

Justin Schack, Managing Director at Rosenblatt Securities, shares these concerns, noting that 45% of equity trading volume is currently executed off-exchange, without pre-trade price transparency, rising above 50-60% for some actively-traded names. Regulators have recently focused on reforms aimed at limiting the power of big exchange groups. But Schack argues for a broader approach, harmonizing a long-established two-tier system which imposes fewer regulatory burdens on off-board brokers, lending them a competitive advantage. “Off-exchange operators have a lot more flexibility when it comes to segmenting order flow. That means exchanges are fighting for market share with one arm tied behind their backs,” he said.

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