By Eunchun Park
When there isn’t a government shutdown that limits reporting activities, the World Agricultural Supply and Demand Estimates (WASDE) report is a once-a-month shock that does more than nudge the average price. On release days, the intraday volatility pattern—its level across the session, its midday spike, and how quickly that spike fades—differs from ordinary days in ways that traders, merchandisers, and risk managers can plan around. A recent research article evaluated the impact of the WASDE report on commodity futures markets’ volatility (Lee and Park, 2024). Here we translate this research into practical guidance for traders when a WASDE report is released.
Most trading plans benchmark a point estimate—an expected move or a single daily volatility number. But markets trade through time. On WASDE days, volatility is comparatively calm into late morning, jumps right after the 11:00 a.m. Central Time (CT) release, and then eases within about an hour. Treating the day like any other misses the timing and the intraday pattern that drives fills, slippage, and margin exposure.
We study corn and soybean futures from January 2013 through April 2023, focusing on regular trading hours (8:30 a.m. to 2:00 p.m. CT) and explicitly comparing three kinds of sessions: the release day itself, the day before, and the day after. Instead of averaging volatility across the whole day, we recover the intraday volatility curve—how volatility evolves minute by minute.