Ask vs RIV: auction bids are not asks — excluded from discounts, min ask and market depth (Yahoo! Auctions ¥1 opening bids surfaced as −90 % deals) · 17ff07f · rareindex

Ask vs RIV: auction bids are not asks — excluded from discounts, min ask and market depth (Yahoo! Auctions ¥1 opening bids surfaced as −90 % deals)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

Simon-Pierre Boucher committed 1 mo ago (Sep 11, 2026) parent 4a63bb9 Browse files

2 changed files +6 −3

modified apps/web/src/lib/queries/depth.ts +1 −1

				`@@ -28,7 +28,7 @@ export const getAssetDepth = cache(async (assetId: string, variantId: string \| n`
28	const scope: AssetDepth['scope'] = target && !single ? 'variant' : 'asset';	28	const scope: AssetDepth['scope'] = target && !single ? 'variant' : 'asset';
29	const asks = await rows<{ price_usd: unknown }>(sql`	29	const asks = await rows<{ price_usd: unknown }>(sql`
30	SELECT l.price_usd FROM listings l	30	SELECT l.price_usd FROM listings l
31	− WHERE l.asset_id = ${assetId} AND l.availability = 'available' AND l.price_usd > 0	31	+ WHERE l.asset_id = ${assetId} AND l.availability = 'available' AND l.price_usd > 0 AND l.listing_type <> 'auction'
32	${scope === 'variant' ? sql`AND l.variant_id = ${target}` : sql``}	32	${scope === 'variant' ? sql`AND l.variant_id = ${target}` : sql``}
33	AND NOT (l.grader IS NOT NULL AND l.grade IS NULL)`);	33	AND NOT (l.grader IS NOT NULL AND l.grade IS NULL)`);
34	const depth = marketDepth(asks.map((a) => num(a.price_usd)), riv);	34	const depth = marketDepth(asks.map((a) => num(a.price_usd)), riv);

modified workers/valuation/run.ts +5 −2

				`@@ -151,7 +151,9 @@ export async function valueAsset(assetId: string, opts: { now?: Date; rebuildHis`
151	if (out.riv !== null && out.basis === 'transactions' && out.confidence >= ASK_MIN_CONFIDENCE && out.sampleSize >= ASK_MIN_SAMPLE) {	151	if (out.riv !== null && out.basis === 'transactions' && out.confidence >= ASK_MIN_CONFIDENCE && out.sampleSize >= ASK_MIN_SAMPLE) {
152	const lo = out.riv * ASK_ANOMALY_LOW_RATIO;	152	const lo = out.riv * ASK_ANOMALY_LOW_RATIO;
153	const hi = out.riv * ASK_ANOMALY_HIGH_RATIO;	153	const hi = out.riv * ASK_ANOMALY_HIGH_RATIO;
154	− const scope = and(eq(listings.variantId, v.id), eq(listings.availability, 'available'), sql`${listings.priceUsd} > 0`);	154	+ // Auction lots are excluded: a current/opening bid (often ¥1 on Yahoo! Auctions) is not an asking price.
		155	+ // Bid-vs-RIV belongs to auction intelligence with fees (§33–§35), not to the deal rails.
		156	+ const scope = and(eq(listings.variantId, v.id), eq(listings.availability, 'available'), sql`${listings.priceUsd} > 0`, sql`${listings.listingType} <> 'auction'`);
155	await db()	157	await db()
156	.update(listings)	158	.update(listings)
157	.set({ discountToRiv: sql`round((${listings.priceUsd} - ${out.riv}) / ${out.riv}, 4)`, flags: sql`array_remove(${listings.flags}, 'riv_anomaly')` })	159	.set({ discountToRiv: sql`round((${listings.priceUsd} - ${out.riv}) / ${out.riv}, 4)`, flags: sql`array_remove(${listings.flags}, 'riv_anomaly')` })
				`@@ -268,7 +270,8 @@ async function snapshotValue(assetId: string, variantId: string, at: Date): Prom`
268		270
269	async function activeListingStats(assetId: string, variantId: string \| null): Promise<{ count: number; minAsk: number \| null }> {	271	async function activeListingStats(assetId: string, variantId: string \| null): Promise<{ count: number; minAsk: number \| null }> {
270	const [row] = await db()	272	const [row] = await db()
271	− .select({ n: sql<number>`count(*)::int`, min: sql<number \| null>`min(${listings.priceUsd})` })	273	+ // count = every live listing; min ask = fixed-price / best-offer / ask only (an auction bid is not an ask)
		274	+ .select({ n: sql<number>`count(*)::int`, min: sql<number \| null>`min(${listings.priceUsd}) filter (where ${listings.listingType} <> 'auction' and ${listings.priceUsd} > 0)` })
272	.from(listings)	275	.from(listings)
273	.where(and(eq(listings.assetId, assetId), eq(listings.availability, 'available'), variantId ? eq(listings.variantId, variantId) : undefined));	276	.where(and(eq(listings.assetId, assetId), eq(listings.availability, 'available'), variantId ? eq(listings.variantId, variantId) : undefined));
274	return { count: row?.n ?? 0, minAsk: row?.min === null \|\| row?.min === undefined ? null : Number(row.min) };	277	return { count: row?.n ?? 0, minAsk: row?.min === null \|\| row?.min === undefined ? null : Number(row.min) };
275		278

spb/rareindex

Ask vs RIV: auction bids are not asks — excluded from discounts, min ask and market depth (Yahoo! Auctions ¥1 opening bids surfaced as −90 % deals)

Theme