Singles Day, Black Friday, Boxing Day: Planning Stock Across Three Peaks

Three events do not create three independent stock pools

Myer’s Singles Day page identifies 11 November as the event date and describes online and store participation. Black Friday falls on 27 November 2026 and Boxing Day on 26 December. These are separate calendar points, not evidence that the same offer, stock commitment or customer response applies throughout the period. This article is dated after Singles Day and makes no claim about its realised sales.

The commercial question now is what the first event leaves for the next one. Core supports a connected merchandise plan across the selling weeks. Record actual Singles Day trading when available, then compare the remaining Black Friday, Christmas and Boxing Day assumptions against the stock already held and due. Do not restart from the original opening balance at every event.

Protect a selling opportunity, rather than a calendar label

A giftable knit can have demand before Christmas at its normal price and another exit opportunity after Christmas. Offering every unit at the deepest November price may bring demand forward without adding demand over the whole period. The event total needs to sit beside the later selling opportunity and the margin assumption.

In Core, keep unit demand, selling price and intake timing distinguishable in MFP/WSSI. A proposed reduction belongs to a defined product group and period. The buyer should be able to explain which later assumption changes if more units are sold now. Core Plus then supports the corresponding allocation by store and size rather than spreading event stock uniformly.

Follow one stock balance through all four trading phases

An independent knitwear plan opens with 600 units. Singles Day sells 120, leaving 480. Before Black Friday, 240 arrive and 300 sell, leaving 420. Christmas trading then sells 240 without another receipt, leaving 180. A further 180 arrive before Boxing Day, when 180 sell, leaving 180 for the remaining season.

The three promotional peaks are separated by Christmas trading, which has its own demand assumption. Total receipts are 420, total sales are 840, and closing stock is 180: 600 plus 420 minus 840. The animation carries that same balance forward. It does not treat the 420 units left after Black Friday as an uncommitted surplus when Christmas still expects 240.

Price each phase on its own commercial basis

Assume a $30 unit cost and selling prices of $60 on Singles Day, $54 on Black Friday, $60 during Christmas trading and $48 on Boxing Day. Under the quantities above, sales value is $46,440 and product gross profit is $21,240 before other expenses. These are USD assumptions, not Myer prices, margins or performance.

A separate sensitivity makes the risk clearer: moving 120 unchanged purchases from the $60 Christmas period into the $54 event reduces sales value and gross profit by $720 at the same cost. That is a timing and price comparison, not proof that a promotion cannibalises this volume. Use evidence to choose the quantity before relying on the calculation.

Release store stock against the next review point

Core Plus supports allocation using buy grade, size curve and capacity, together with refill models and store overrides. Use those controls to place the stock the next phase can support. Store depth for an early event need not equal the allocation needed for the Christmas customer or the later clearance window.

Before releasing a further drop, inspect the usable source stock, sizes and arrival date. A central reserve is useful only if it can reach the destination while demand remains. The worked plan does not assume the 180 Boxing Day receipt can be pulled into November, or that an early allocation changes the supplier order that created the stock.

Let actual trading challenge the later assumptions

After each event, reconcile sales, returns, stock movements and confirmed receipts before comparing the next phase. A strong first day can reflect genuine additional demand, demand brought forward, a different mix or a temporary availability advantage. The same headline sales value can produce different remaining stock and margin outcomes.

Core provides the period and version context for that discussion. Record the revised assumption and retain the earlier plan for comparison. A budget revision is separate from approval to change a price, release stock or amend an order. Each operational decision still needs its supported workflow and responsible owner.

Close the review with a retained-stock decision

The useful output is a clear quantity and date: which units remain available for Christmas, what can support Black Friday, and what receipt is still required for Boxing Day? Do not describe stock as protected simply because a planner has written a note. Confirm the location, source and permitted operating control.

For this example, the key checkpoint is the 420-unit balance after Black Friday. It contains 240 units of expected Christmas demand and 180 that remain afterwards. If either assumption changes, revise the plan explicitly before deepening the next offer. Three sale peaks should share one stock story and several deliberate commercial decisions.

Common questions