Week-over-week (WoW), year-over-year (YoY), and versus-seasonal-average (vs-seasonal) are the three most common ways a meat buyer benchmarks today's price. Each captures a different layer of the market and answers a different question. A buyer who reads all three together gets a much clearer picture than one who reads any in isolation.
Week-over-week (WoW)
WoW is the change from the same day last week to today, expressed in dollars per cwt or as a percentage. It is the shortest meaningful comparison because daily prints carry too much noise from single transactions, while weekly comparisons smooth that noise across five trading days.
WoW is the right read for tactical questions: is today's price firmer or softer than last week? What is the immediate momentum? Did the last seven days of trade move the market or hold it sideways? A WoW move of more than 1 to 2 percent in either direction is meaningful for most cuts; smaller moves are usually within the routine variation of the trade and do not signal direction.
The limitation of WoW is that it does not account for seasonality. A WoW rise of 3 percent into Memorial Day is normal seasonal behavior, not a signal of unusual strength. A WoW rise of 3 percent in late January, against the typical post-holiday softness, is a much stronger signal that the market is running hot. WoW alone misses that distinction.
Year-over-year (YoY)
YoY is the change from the same calendar week last year to this week, also expressed in dollars or percent. It captures structural shifts: is the market structurally higher or lower than it was a year ago? YoY strips out within-year seasonality (the same calendar week last year carries the same seasonal influences) and isolates the longer-term pricing level.
YoY is the right read for strategic questions: is the market in a multi-year up cycle or down cycle? How much budget pressure are we under versus last year's plan? Are we structurally short or long supply versus the prior year?
YoY has its own limitations. The previous year's comparison week may have been unusually high or low for non-recurring reasons (a packing plant outage, a one-off trade dispute, a recession demand drop), in which case the YoY comparison is anchored to an unusual base and reads misleadingly strong or weak. A buyer reading a sharp YoY change should always check whether the prior-year base was itself unusual.
Versus the five-year seasonal norm (vs-seasonal)
Vs-seasonal compares this week's price to the average of the same calendar week across the prior five years. It strips out both within-year seasonality and single-year anomalies. A vs-seasonal read of plus 5 percent means today's price is 5 percent above where the seasonal pattern would predict it to be, given the time of year.
Vs-seasonal is usually the most useful single read for planning decisions because it normalizes for the two factors (seasonality and base-year anomalies) that distort the simpler comparisons. A buyer asking "should I buy forward now or wait?" benefits more from vs-seasonal than from either WoW or YoY in isolation. Above-norm prices suggest the market is running hot relative to history and additional upside is limited; below-norm prices suggest there is room for prices to firm.
The five-year window is a convention. Some analysts use three years to capture more recent structural shifts (post-COVID demand patterns, recent cattle herd contractions), and some use ten years for more stability. The five-year norm is the most widely cited and is the default in most published seasonal indexes. A buyer running their own seasonal comparisons can use whichever window matches their analytical horizon.
Reading them together
The three reads tell complementary stories. A typical interpretation framework: vs-seasonal answers "is the price unusual right now?", YoY answers "is this a structural change from last year?", WoW answers "what is the immediate momentum?".
A useful pattern: if WoW is positive but vs-seasonal is at or below norm, the rise is probably catch-up to seasonal trend, not a signal of unusual strength. If WoW is positive and vs-seasonal is already 4 to 5 percent above norm, the rise is unusual on top of unusual, which is a stronger signal that the market is genuinely overheated.
Another pattern: if YoY is sharply different from prior year but vs-seasonal is at norm, the prior year was the anomaly, not this year. If YoY is sharply different and vs-seasonal is also unusual, this year is itself the anomaly.
Most professional buyer dashboards display all three side by side. Reading them together is the standard way to interpret price moves in real time, and it is one of the things that distinguishes a buyer who has internalized the rhythm of the market from one who is still anchored on absolute price levels.