What happened to the pump last night? Just keeps going down.
I think, given the MtGox situation which became official, there is a pull from altcoins to BTC as a salvage operation. It's possible that some investors only have BTCs which were in altcoins as part of their diversification, and perhaps, these invested BTCs were the only thing they've got right now.
The following is from coinmarketcap relative to BTC
3 Litecoin 631,544 BTC 0.02418 BTC 26,122,054 LTC 10,567 BTC
-4.46 % 4 Auroracoin 340,364 BTC 0.03214 BTC 10,591,226 AUR 978 BTC
+128.36 % 5 Peercoin 127,243 BTC 0.006007 BTC 21,184,127 PPC 588 BTC
-4.93 % 6 Dogecoin 106,826 BTC 1.937e-06 BTC 55,152,324,290 DOGE 2,764 BTC
-6.16 % 7 Nxt 81,003 BTC 8.1e-05 BTC 999,997,986 NXT* 142 BTC
-4.94 % 8 Mastercoin 49,623 BTC 0.08811 BTC 563,162 MSC* 7 BTC
-9.96 % 9 Namecoin 48,431 BTC 0.00594 BTC 8,153,492 NMC 686 BTC
-1.69 % 10 ProtoShares 40,014 BTC 0.02578 BTC 1,552,285 PTS 1,998 BTC
-3.42 % 11 Counterparty 22,249 BTC 0.0084 BTC 2,648,736 XCP* 63 BTC
+6.71 % 12 Quark 22,086 BTC 8.919e-05 BTC 247,620,114 QRK 218 BTC
-3.54 % 13 Feathercoin 13,950 BTC 0.0004003 BTC 34,852,450 FTC 94 BTC
-3.02 % 14 Megacoin 13,586 BTC 0.0006072 BTC 22,373,400 MEC 170 BTC
-1.37 % 15 Primecoin 12,580 BTC 0.002728 BTC 4,610,911 XPM 184 BTC
-6.83 % 16 Infinitecoin 12,377 BTC 1.371e-07 BTC 90,276,565,517 IFC 171 BTC
-4.84 % 17 Novacoin 9,741 BTC 0.01354 BTC 719,293 NVC 77 BTC
-5.02 % 18 WorldCoin 8,975 BTC 0.0001927 BTC 46,568,320 WDC 234 BTC
-1.23 % 19 Vertcoin 6,869 BTC 0.003164 BTC 2,170,750 VTC 201 BTC
-0.77 % 20 MaxCoin 5,548 BTC 0.0009126 BTC 6,079,392 MAX 474 BTC
-12.39 % 21 YbCoin 5,331 BTC 0.004792 BTC 1,112,605 YBC 123 BTC
-4.12 % 22 Mintcoin 5,280 BTC 2.922e-07 BTC 18,067,476,076 MINT 721 BTC
-31.43 % 23 Devcoin 3,625 BTC 5.672e-07 BTC 6,389,970,050 DVC 30 BTC
-3.92 % 24 Tickets 3,508 BTC 5.246e-08 BTC 66,876,281,414 TIX 47 BTC
-5.56 % 25 DarkCoin 3,456 BTC 0.0009848 BTC 3,509,427 DRK 110 BTC
-0.03 % 26 Zetacoin 2,793 BTC 1.744e-05 BTC 160,157,482 ZET 40 BTC
-0.90 % 27 Digitalcoin 2,670 BTC 0.0001952 BTC 13,676,401 DGC 56 BTC
-3.81 % 28 Freicoin 2,630 BTC 6.804e-05 BTC 38,657,408 FRC 8 BTC
-3.70 % 29 NetCoin 2,388 BTC 1.067e-05 BTC 223,873,786 NET 31 BTC
-9.59 % 30 Ixcoin 2,304 BTC 0.0001251 BTC 18,413,810 IXC 1 BTC
+0.76 %