Auction house flips on EU PvP Alliance

A character can use its own faction's auction house and the neutral Blackwater house of its ruleset. When the same item is cheaper in one than in the other, you can buy it there and list it in the other. These are the gaps on World of Warcraft®: Forever that were also there a day ago, biggest first. Pick another house in the menu above.

Prices from the dumps of 12 min ago (14 Nov 04:18 UTC)

Buy at Blackwater, sell on Alliance EU PvP Blackwater → EU PvP Alliance, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Shredder Operating Manual - Page 5Buy 9s 99c, sell 30s 99c	9s 99c	30s 99c	+19s 45c195%	48	24
Iron GrenadeBuy 3s 88c, sell 10s	3s 88c	10s	+5s 62c145%	174	161
Scroll: OMIT KESABuy 1s 99c, sell 4s 30c	1s 99c	4s 30c	+2s 10c105%	61	266
Thunder Lizard TailBuy 1s 95c, sell 4s	1s 95c	4s	+1s 85c95%	21	157
Scroll: TOPAZ YORAKBuy 1s 98c, sell 3s 99c	1s 98c	3s 99c	+1s 81c91%	35	105
Stranglethorn SeedBuy 12s, sell 23s 22c	12s	23s 22c	+10s 6c84%	101	300
Shredder Operating Manual - Page 2Buy 9s 90c, sell 18s	9s 90c	18s	+7s 20c73%	30	39
PeacebloomBuy 1s 41c, sell 2s 54c	1s 41c	2s 54c	+1s71%	937	204
Stonescale EelBuy 1s 50c, sell 2s 54c	1s 50c	2s 54c	+91c61%	189	10,342
Raptor HideBuy 2s 20c, sell 3s 60c	2s 20c	3s 60c	+1s 22c55%	1,138	755
Large FangBuy 79c, sell 1s 25c	79c	1s 25c	+40c50%	149	349
StranglekelpBuy 2s 35c, sell 3s 44c	2s 35c	3s 44c	+92c39%	691	359
Savory Deviate DelightBuy 4s 7c, sell 5s 47c	4s 7c	5s 47c	+1s 13c28%	514	4,160
TigerseyeBuy 1s 4c, sell 1s 33c	1s 4c	1s 33c	+22c21%	84	336
Medium LeatherBuy 80c, sell 1s	80c	1s	+15c19%	1,650	5,780
Heavy LeatherBuy 1s 86c, sell 2s 28c	1s 86c	2s 28c	+31c16%	1,938	3,490
Elemental AirBuy 15s 99c, sell 19s 34c	15s 99c	19s 34c	+2s 38c15%	29	247
Heavy StoneBuy 2s 98c, sell 3s 60c	2s 98c	3s 60c	+44c15%	2,254	1,578
Heavy HideBuy 9s 99c, sell 11s 99c	9s 99c	11s 99c	+1s 40c14%	618	1,141
AquamarineBuy 11s 1c, sell 13s	11s 1c	13s	+1s 34c12%	52	143

Buy on Alliance, sell at Blackwater EU PvP Alliance → EU PvP Blackwater, 15% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Manual: Heavy Silk BandageBuy 28s, sell 98s	28s	98s	+55s 30c198%	159	25
Soft Banana BreadBuy 1s 60c, sell 5s 55c	1s 60c	5s 55c	+3s 12c195%	60	36
Murloc EyeBuy 74c, sell 2s 55c	74c	2s 55c	+1s 43c193%	1,771	25
Silken ThreadBuy 4s 97c, sell 16s 99c	4s 97c	16s 99c	+9s 47c191%	433	61
Rough Copper BombBuy 60c, sell 2s 1c	60c	2s 1c	+1s 11c185%	1,297	34
Explosive SheepBuy 10s 75c, sell 35s 88c	10s 75c	35s 88c	+19s 75c184%	326	31
Scorpok PincerBuy 1g 2s 99c, sell 3g 40s 96c	1g 2s 99c	3g 40s 96c	+1g 86s 83c181%	444	35
Sulfuric AcidBuy 3s 63c, sell 11s 92c	3s 63c	11s 92c	+6s 50c179%	580	163
Strider StewBuy 58c, sell 1s 90c	58c	1s 90c	+1s 4c178%	774	120
Boar RibsBuy 1s 10c, sell 3s 60c	1s 10c	3s 60c	+1s 96c178%	1,244	219
Solid WeightstoneBuy 3s 98c, sell 13s	3s 98c	13s	+7s 7c178%	1,248	326
Iron BuckleBuy 2s 1c, sell 6s 55c	2s 1c	6s 55c	+3s 56c177%	1,398	210
Lesser Mystic EssenceBuy 9s, sell 29s	9s	29s	+15s 65c174%	607	272
Dense StoneBuy 4s 65c, sell 14s 90c	4s 65c	14s 90c	+8s 2c172%	1,814	274
Azure Silk HoodBuy 9s 42c, sell 30s 10c	9s 42c	30s 10c	+16s 16c172%	108	36
GromsbloodBuy 24s 96c, sell 78s 96c	24s 96c	78s 96c	+42s 16c169%	447	139
Meaty Bat WingBuy 2s 39c, sell 7s 48c	2s 39c	7s 48c	+3s 97c166%	453	44
Mountain SilversageBuy 31s 81c, sell 98s 99c	31s 81c	98s 99c	+52s 33c165%	3,423	67
Coyote MeatBuy 5s 11c, sell 15s 40c	5s 11c	15s 40c	+7s 98c156%	326	21
Yellow DyeBuy 2s 99c, sell 8s 99c	2s 99c	8s 99c	+4s 65c156%	94	58
Copper ModulatorBuy 3s 35c, sell 10s	3s 35c	10s	+5s 15c154%	928	40
Chunk of Boar MeatBuy 65c, sell 1s 93c	65c	1s 93c	+99c152%	2,470	153
Crawler MeatBuy 1s 18c, sell 3s 50c	1s 18c	3s 50c	+1s 80c152%	1,583	89
Undamaged Hippogryph FeatherBuy 3s 98c, sell 11s 76c	3s 98c	11s 76c	+6s 2c151%	185	24
Waylaid Crate: Earthly Expert HerbsBuy 1s 99c, sell 5s 88c	1s 99c	5s 88c	+3s 1c151%	175	205

Alliance against Horde

Moving goods between the factions needs a character on each side and a hand-off through Blackwater, where anyone can buy the listing before your other character does. So these gaps are harder to use, but they show how far apart the two factions' markets are.

Buy on Horde, sell on Alliance EU PvP Horde → EU PvP Alliance, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Maker's SparkBuy 2g 90s 99c, sell 8g 98s 95c	2g 90s 99c	8g 98s 95c	+5g 63s 1c193%	106	82
Jungle RemedyBuy 99c, sell 3s	99c	3s	+1s 86c188%	346	2,802
Dense DynamiteBuy 18s, sell 54s 49c	18s	54s 49c	+33s 77c188%	23	156
Formula: Enchant Boots - Minor AgilityBuy 3s, sell 8s 90c	3s	8s 90c	+5s 46c182%	64	64
Blood RingBuy 15s 99c, sell 46s	15s 99c	46s	+27s 71c173%	46	82
Mystic's BraceletsBuy 2s 45c, sell 7s	2s 45c	7s	+4s 20c171%	43	24
Strider MeatBuy 98c, sell 2s 80c	98c	2s 80c	+1s 68c171%	1,074	865
Pattern: Red Woolen BagBuy 2s, sell 5s 65c	2s	5s 65c	+3s 37c168%	95	92
Yellow Power CrystalBuy 4s 95c, sell 13s 97c	4s 95c	13s 97c	+8s 32c168%	846	449
Pattern: Warden's Leather GauntletsBuy 69s 25c, sell 1g 87s 96c	69s 25c	1g 87s 96c	+1g 9s 31c158%	23	36
Imperfect Draenethyst FragmentBuy 92s, sell 2g 43s 97c	92s	2g 43s 97c	+1g 39s 77c152%	77	62
Craftsman's Writ: Dark Leather TunicBuy 30s 84c, sell 80s	30s 84c	80s	+45s 16c146%	29	28
Breath of WindBuy 22s, sell 57s	22s	57s	+32s 15c146%	222	185
Small Seaforium ChargeBuy 1s 50c, sell 3s 87c	1s 50c	3s 87c	+2s 18c145%	48	111
Lion MeatBuy 1s 2c, sell 2s 56c	1s 2c	2s 56c	+1s 41c138%	1,959	1,074
Recipe: Limited Invulnerability PotionBuy 8s, sell 20s	8s	20s	+11s138%	68	77
Craftsman's Writ: Flask of Chromatic ResistanceBuy 44s, sell 1g 9s 97c	44s	1g 9s 97c	+60s 47c137%	30	24
War Paint ChestpieceBuy 13s 98c, sell 34s 50c	13s 98c	34s 50c	+18s 80c134%	45	24
Rumsey Rum Black LabelBuy 2s 19c, sell 5s 40c	2s 19c	5s 40c	+2s 94c134%	710	1,241
Smoked SagefishBuy 65c, sell 1s 60c	65c	1s 60c	+87c134%	1,410	1,761
Small Furry PawBuy 98c, sell 2s 40c	98c	2s 40c	+1s 30c133%	874	564
Bear BrisketBuy 4s 17c, sell 10s 18c	4s 17c	10s 18c	+5s 50c132%	223	797
Craftsman's Writ: Imperial Plate ChestBuy 29s 99c, sell 71s 89c	29s 99c	71s 89c	+38s 31c128%	34	26
Giant Clam MeatBuy 2s 94c, sell 7s	2s 94c	7s	+3s 71c126%	321	369
Royal TeaBuy 2s 28c, sell 5s 40c	2s 28c	5s 40c	+2s 85c125%	115	356

Buy on Alliance, sell on Horde EU PvP Alliance → EU PvP Horde, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Snickerfang JowlBuy 20s 88c, sell 64s 88c	20s 88c	64s 88c	+40s 76c195%	266	728
Chunk of Boar MeatBuy 65c, sell 2s	65c	2s	+1s 25c192%	2,470	5,931
Recipe: Strider StewBuy 4s 87c, sell 14s 80c	4s 87c	14s 80c	+9s 19c189%	43	24
Cherry GrogBuy 9s 99c, sell 30s	9s 99c	30s	+18s 51c185%	81	48
Bronze GreatswordBuy 25s, sell 75s	25s	75s	+46s 25c185%	40	145
Blueprint: Cookie's FeastBuy 1g 1c, sell 2g 97s 88c	1g 1c	2g 97s 88c	+1g 82s 98c183%	23	23
Lesser Troll's Blood ElixirBuy 78c, sell 2s 14c	78c	2s 14c	+1s 25c161%	334	340
Conjurer's CloakBuy 18s, sell 49s	18s	49s	+28s 55c159%	22	26
Crawler MeatBuy 1s 18c, sell 3s 20c	1s 18c	3s 20c	+1s 86c158%	1,583	554
Waylaid Crate: Artisan OreBuy 1s 7c, sell 2s 89c	1s 7c	2s 89c	+1s 68c157%	322	439
Copper TubeBuy 1s 27c, sell 3s 38c	1s 27c	3s 38c	+1s 94c153%	493	677
Bandit PantsBuy 9s 84c, sell 26s	9s 84c	26s	+14s 86c151%	39	26
Coyote SteakBuy 1s 90c, sell 4s 99c	1s 90c	4s 99c	+2s 84c149%	333	547
Waylaid Crate: Apprentice TextilesBuy 6s 97c, sell 17s 97c	6s 97c	17s 97c	+10s 10c145%	333	129
Pearl-clasped CloakBuy 4s 69c, sell 12s	4s 69c	12s	+6s 71c143%	40	62
Roasted Boar MeatBuy 42c, sell 1s 7c	42c	1s 7c	+60c142%	1,359	1,493
Craftsman's Writ: Masterwork Target DummyBuy 30s, sell 76s	30s	76s	+42s 20c141%	21	38
Discolored Healing PotionBuy 1s 99c, sell 5s	1s 99c	5s	+2s 76c139%	269	271
Tough Condor MeatBuy 8s, sell 20s	8s	20s	+11s138%	638	104
Scroll of Intellect IVBuy 19s 99c, sell 49s 1c	19s 99c	49s 1c	+26s 57c133%	29	54
Scroll of Stamina IVBuy 24s 49c, sell 59s 98c	24s 49c	59s 98c	+32s 49c133%	33	77
Schematic: EZ-Thro Tru-TriggerBuy 9s 99c, sell 23s 99c	9s 99c	23s 99c	+12s 80c128%	30	68
Blasted Boar LungBuy 40s 99c, sell 98s 33c	40s 99c	98s 33c	+52s 42c128%	431	130
Large Raw MightfishBuy 17s 95c, sell 42s 99c	17s 95c	42s 99c	+22s 89c128%	58	129
Veteran LeggingsBuy 4s 19c, sell 10s	4s 19c	10s	+5s 31c127%	61	66

How these are worked out

Prices are listed prices from the last hourly dump, not sales. A gap can close before you get there, and listing an item isn't selling it.
Buy and sell are near-lowest prices (the price of the cheapest 10% of units listed), so one stray cheap listing doesn't make a gap. Each side needs at least 20 units listed, to buy from and to sell against.
The gap is what a sale at the sell price brings in after the auction house's cut, minus the buy price. We haven't measured Forever's cut yet, so this assumes Classic's: 5% at a faction house and 15% at Blackwater. The deposit isn't counted. Only gaps from 10% to 200% after the cut are shown, at most 25 a table: a bigger gap is nearly always a few listings priced far above the market, which nobody buys.
A gap is shown only if it went the same way in the dumps about 24 hours earlier, so one that appeared this hour, and is probably gone soon, isn't.
Blizzard's data doesn't say which ruleset a house serves, so the names are inferred. They agree with BootyBayBroker's market labels and an in-game scan, but so far we've only confirmed EU PvP Alliance in game ourselves.