Auction house flips on NA Normal Blackwater

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 27 min ago (14 Nov 03:17 UTC)

Buy at Blackwater, sell on Alliance NA Normal Blackwater → NA Normal Alliance, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Green Hills of Stranglethorn - Page 26Buy 14s 88c, sell 40s	14s 88c	40s	+23s 12c155%	121	51
Green Hills of Stranglethorn - Page 27Buy 5s 25c, sell 10s 90c	5s 25c	10s 90c	+5s 10c97%	42	252
Light HideBuy 1s 19c, sell 1s 99c	1s 19c	1s 99c	+70c59%	148	648
Green Hills of Stranglethorn - Page 18Buy 4s 50c, sell 6s 59c	4s 50c	6s 59c	+1s 76c39%	97	209
Soft Banana BreadBuy 2s, sell 2s 50c	2s	2s 50c	+38c19%	51	33
TigerseyeBuy 1s 5c, sell 1s 30c	1s 5c	1s 30c	+18c18%	172	563
Raptor FleshBuy 2s 49c, sell 3s	2s 49c	3s	+36c14%	1,452	460
Heavy LeatherBuy 1s 79c, sell 2s 15c	1s 79c	2s 15c	+25c14%	2,118	4,000

Buy on Alliance, sell at Blackwater NA Normal Alliance → NA Normal Blackwater, 15% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Greater Mystic EssenceBuy 27s 22c, sell 95s	27s 22c	95s	+53s 53c197%	335	99
Whirring Bronze GizmoBuy 5s 50c, sell 19s	5s 50c	19s	+10s 65c194%	433	62
Raw Winter SquidBuy 3s 49c, sell 12s	3s 49c	12s	+6s 71c192%	1,031	427
Silvered Bronze BootsBuy 9s 80c, sell 33s	9s 80c	33s	+18s 25c186%	128	20
Coarse Sharpening StoneBuy 90c, sell 3s	90c	3s	+1s 65c183%	462	20
Red Fireworks RocketBuy 90c, sell 3s	90c	3s	+1s 65c183%	179	34
Spotted YellowtailBuy 70c, sell 2s 30c	70c	2s 30c	+1s 26c179%	5,711	1,075
EarthrootBuy 36c, sell 1s 17c	36c	1s 17c	+63c176%	3,838	714
WintersbiteBuy 8s 97c, sell 29s	8s 97c	29s	+15s 68c175%	562	63
Nightfin SoupBuy 6s 15c, sell 19s 80c	6s 15c	19s 80c	+10s 68c174%	235	155
Elixir of AgilityBuy 6s 10c, sell 19s 50c	6s 10c	19s 50c	+10s 48c172%	711	93
Elixir of Lesser AgilityBuy 4s 70c, sell 15s	4s 70c	15s	+8s 5c171%	301	27
Camp TentBuy 2s 16c, sell 6s 89c	2s 16c	6s 89c	+3s 70c171%	761	64
Deeprock SaltBuy 2s 65c, sell 8s 38c	2s 65c	8s 38c	+4s 47c169%	224	115
Green Iron BracersBuy 14s 87c, sell 47s	14s 87c	47s	+25s 8c169%	63	34
Lesser Cleric's ElixirBuy 6s 42c, sell 20s	6s 42c	20s	+10s 58c165%	113	32
StranglekelpBuy 1s 25c, sell 3s 89c	1s 25c	3s 89c	+2s 6c165%	613	128
Lesser Mystic EssenceBuy 10s, sell 31s	10s	31s	+16s 35c164%	141	99
Thorium BarBuy 31s 11c, sell 95s	31s 11c	95s	+49s 64c160%	1,415	28
Thick HideBuy 5s 32c, sell 15s 98c	5s 32c	15s 98c	+8s 26c155%	165	125
Green Woolen BagBuy 24s 98c, sell 75s	24s 98c	75s	+38s 77c155%	92	21
Bright BaublesBuy 2s 50c, sell 7s 50c	2s 50c	7s 50c	+3s 88c155%	105	26
Fused WiringBuy 4s 44c, sell 13s	4s 44c	13s	+6s 61c149%	182	39
Purple LotusBuy 4s 19c, sell 12s 10c	4s 19c	12s 10c	+6s 10c145%	828	121
Heavy Sharpening StoneBuy 2s 30c, sell 6s 50c	2s 30c	6s 50c	+3s 22c140%	190	561

Buy at Blackwater, sell on Horde NA Normal Blackwater → NA Normal Horde, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
TigerseyeBuy 1s 5c, sell 1s 70c	1s 5c	1s 70c	+56c54%	172	671
Savory Whimsyfin DelightBuy 3s 50c, sell 5s	3s 50c	5s	+1s 25c36%	62	331
Slimy Murloc ScaleBuy 89c, sell 1s 26c	89c	1s 26c	+31c34%	39	584
Turtle MeatBuy 2s 83c, sell 3s 97c	2s 83c	3s 97c	+94c33%	116	436
Lightning in a BottleBuy 1s, sell 1s 25c	1s	1s 25c	+19c19%	45	89
Goretusk Liver PieBuy 3s 90c, sell 4s 80c	3s 90c	4s 80c	+66c17%	39	28

Buy on Horde, sell at Blackwater NA Normal Horde → NA Normal Blackwater, 15% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Barbecued Buzzard WingBuy 6s 80c, sell 23s 98c	6s 80c	23s 98c	+13s 58c200%	826	343
Minor Troll's Blood ElixirBuy 29c, sell 1s	29c	1s	+56c193%	626	82
Shiny BaubleBuy 29c, sell 1s	29c	1s	+56c193%	103	70
Green Iron BracersBuy 13s 85c, sell 47s	13s 85c	47s	+26s 10c188%	134	34
Cured Heavy HideBuy 13s 30c, sell 45s	13s 30c	45s	+24s 95c188%	1,236	134
Small Glowing ShardBuy 17s 24c, sell 58s 22c	17s 24c	58s 22c	+32s 25c187%	750	72
Jungle RemedyBuy 1s 49c, sell 5s	1s 49c	5s	+2s 76c185%	145	216
Worn DragonscaleBuy 7s 74c, sell 25s 96c	7s 74c	25s 96c	+14s 33c185%	785	29
Minor Magic Resistance PotionBuy 45c, sell 1s 50c	45c	1s 50c	+82c183%	353	22
Sealed Journeyman's WritBuy 25s 90c, sell 85s 79c	25s 90c	85s 79c	+47s 2c182%	151	61
Silvered Bronze BootsBuy 10s, sell 33s	10s	33s	+18s 5c180%	196	20
AquamarineBuy 12s, sell 39s	12s	39s	+21s 15c176%	623	92
Bear MeatBuy 34c, sell 1s 10c	34c	1s 10c	+60c175%	963	127
Raw Glossy MightfishBuy 2s 75c, sell 8s 70c	2s 75c	8s 70c	+4s 64c169%	1,088	285
Greater Astral EssenceBuy 15s 70c, sell 48s 99c	15s 70c	48s 99c	+25s 94c165%	277	101
Thick HideBuy 5s 16c, sell 15s 98c	5s 16c	15s 98c	+8s 42c163%	450	125
Deeprock SaltBuy 2s 79c, sell 8s 38c	2s 79c	8s 38c	+4s 33c155%	1,384	115
Buzzard WingBuy 2s 65c, sell 7s 95c	2s 65c	7s 95c	+4s 11c155%	2,656	216
Sagefish DelightBuy 1s 65c, sell 4s 88c	1s 65c	4s 88c	+2s 50c151%	676	22
White Spider MeatBuy 1s 73c, sell 5s	1s 73c	5s	+2s 52c146%	1,211	103
Greater Mystic EssenceBuy 32s 95c, sell 95s	32s 95c	95s	+47s 80c145%	516	99
Lesser Mystic EssenceBuy 10s 90c, sell 31s	10s 90c	31s	+15s 45c142%	929	99
Torn Bear PeltBuy 3s 24c, sell 9s	3s 24c	9s	+4s 41c136%	443	86
Uncommon Herb SeedsBuy 1s 80c, sell 5s	1s 80c	5s	+2s 45c136%	151	29
Deadly BlunderbussBuy 25s, sell 69s 42c	25s	69s 42c	+34s 1c136%	435	47

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 NA Normal Horde → NA Normal Alliance, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Rigid MoccasinsBuy 7s 95c, sell 24s	7s 95c	24s	+14s 85c187%	30	26
Deadly PoisonBuy 1s, sell 3s	1s	3s	+1s 85c185%	93	232
Waylaid Crate: Journeyman PartsBuy 2s 33c, sell 6s 99c	2s 33c	6s 99c	+4s 31c185%	260	130
Lesser Invisibility PotionBuy 1s 49c, sell 4s 40c	1s 49c	4s 40c	+2s 69c181%	476	338
MarefoilBuy 2g, sell 5g 75s	2g	5g 75s	+3g 46s 25c173%	21	42
Elixir of SpiritBuy 12s, sell 34s	12s	34s	+20s 30c169%	211	22
Torn Bear PeltBuy 3s 24c, sell 9s 15c	3s 24c	9s 15c	+5s 45c168%	443	236
Fine Leather GlovesBuy 3s 8c, sell 8s 67c	3s 8c	8s 67c	+5s 16c167%	54	159
Green Hills of Stranglethorn - Page 27Buy 3s 89c, sell 10s 90c	3s 89c	10s 90c	+6s 46c166%	236	252
Dark Iron OreBuy 8s 23c, sell 22s 94c	8s 23c	22s 94c	+13s 56c165%	695	749
Essence of EarthBuy 3g 99s, sell 10g 99s 98c	3g 99s	10g 99s 98c	+6g 45s 98c162%	66	27
Mithril Head TroutBuy 40c, sell 1s 10c	40c	1s 10c	+64c161%	571	3,630
War Paint BindingsBuy 3s 10c, sell 8s 49c	3s 10c	8s 49c	+4s 97c160%	41	26
Waylaid Crate: Apprentice PartsBuy 1s 47c, sell 4s	1s 47c	4s	+2s 33c159%	284	356
Lion MeatBuy 93c, sell 2s 40c	93c	2s 40c	+1s 35c145%	387	2,022
Prospector's CloakBuy 2s 75c, sell 7s	2s 75c	7s	+3s 90c142%	35	27
Green Hills of Stranglethorn - Page 26Buy 15s 80c, sell 40s	15s 80c	40s	+22s 20c141%	281	51
War Paint AnklewrapsBuy 4s 35c, sell 11s	4s 35c	11s	+6s 10c140%	31	31
Ritual ShroudBuy 9s 99c, sell 25s	9s 99c	25s	+13s 76c138%	28	20
Middle Map FragmentBuy 3s 99c, sell 9s 98c	3s 99c	9s 98c	+5s 49c138%	83	60
Manual: Superior Healing PotionBuy 19s 99c, sell 50s	19s 99c	50s	+27s 51c138%	28	43
Formula: Enchant Weapon - DemonslayingBuy 16s, sell 40s	16s	40s	+22s138%	22	44
Iron Shield SpikeBuy 7s 20c, sell 17s 93c	7s 20c	17s 93c	+9s 83c137%	90	68
Native RobeBuy 3s 40c, sell 8s 45c	3s 40c	8s 45c	+4s 63c136%	35	25
Tundra RingBuy 27s, sell 67s	27s	67s	+36s 65c136%	34	27

Buy on Alliance, sell on Horde NA Normal Alliance → NA Normal Horde, 5% cut

Item	Buy	Sell	Gap after cut	To buy	Listed there
Crocolisk GumboBuy 1s, sell 3s 7c	1s	3s 7c	+1s 92c192%	167	87
Pattern: Red Linen BagBuy 1s 99c, sell 6s	1s 99c	6s	+3s 71c186%	243	22
Craftsman's Writ: Dark Iron BombBuy 4s 90c, sell 14s 50c	4s 90c	14s 50c	+8s 88c181%	28	47
Crawler MeatBuy 1s 70c, sell 5s	1s 70c	5s	+3s 5c179%	619	859
Pilferer's GlovesBuy 35s, sell 1g	35s	1g	+60s171%	31	49
Seasoned Wolf KabobBuy 1s 5c, sell 3s	1s 5c	3s	+1s 80c171%	167	131
Globe of WaterBuy 29s 97c, sell 84s 99c	29s 97c	84s 99c	+50s 77c169%	256	44
ShellfishBuy 14s 99c, sell 42s 20c	14s 99c	42s 20c	+25s 10c167%	306	477
Red Ribboned Wrapping PaperBuy 50c, sell 1s 40c	50c	1s 40c	+83c166%	42	191
Craftsman's Writ: Mechanical DragonlingBuy 2s 50c, sell 6s 99c	2s 50c	6s 99c	+4s 14c166%	39	61
Copper TubeBuy 1s 20c, sell 3s 33c	1s 20c	3s 33c	+1s 96c164%	357	596
Raw Whitescale SalmonBuy 10s 99c, sell 30s	10s 99c	30s	+17s 51c159%	1,186	384
Catseye DraughtBuy 3s 50c, sell 9s 42c	3s 50c	9s 42c	+5s 45c156%	169	550
Blueprint: AnvilBuy 95s, sell 2g 55s	95s	2g 55s	+1g 47s 25c155%	32	31
Limited Invulnerability PotionBuy 32s 50c, sell 85s 97c	32s 50c	85s 97c	+49s 17c151%	109	453
Scroll: FORGOT HOOF THUDBuy 19s, sell 50s	19s	50s	+28s 50c150%	46	24
Fortified GauntletsBuy 8s 38c, sell 22s	8s 38c	22s	+12s 52c149%	41	28
Enchanted LeatherBuy 97s, sell 2g 49s 98c	97s	2g 49s 98c	+1g 40s 48c145%	30	124
Gnomish Universal RemoteBuy 33s 99c, sell 86s	33s 99c	86s	+47s 71c140%	79	41
Coyote MeatBuy 3s 75c, sell 9s 48c	3s 75c	9s 48c	+5s 26c140%	247	658
Tough Condor MeatBuy 6s 25c, sell 15s 75c	6s 25c	15s 75c	+8s 71c139%	288	88
Craftsman's Writ: Fire GogglesBuy 2s 79c, sell 7s	2s 79c	7s	+3s 86c138%	26	43
Morning Glory DewBuy 3s 99c, sell 9s 99c	3s 99c	9s 99c	+5s 50c138%	21	242
Scroll of Spirit IVBuy 12s 45c, sell 30s 94c	12s 45c	30s 94c	+16s 94c136%	22	71
Lesser Troll's Blood ElixirBuy 90c, sell 2s 23c	90c	2s 23c	+1s 22c135%	188	610

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.