bitcoinaverage.com
preev.com
Almost everyone bases their price on those or on bitstamp or coinbase, and then convert to local currency.
For local, just look at rebit.ph and coins.ph and btcexchange.ph which are, in my humble opinion, the top 3 in Metro Manila.
Hindi naman pwede magkalayo ng presyo dahil sa arbitrage. You can make money when the price differences are big, but it's risky even if you can do it all within the hour.
I tried. You would need a few hundred thousand pesos, deposit to one exchange, trade to bitcoin, withdraw, deposit the BTC to another exchange, sell to pesos, withdraw. That's one cycle that will take the better part of the day.
The next day, wala na yung opportunity kasi lahat ng kagaya ko ginawa na.
Ang kikitain mo? mga 1% to 2% to 3%, so sa 100,000 (hundred thousand) pesos, mga up to 3000 (three thousand) pesos.
Sana magawa mo araw araw, eh, di okey, pero kailangan mo ng pera. At, pwede mag back fire, papano kung biglang bumagsak yung presyo, eh, di, patay ka na.
Don't try with money you can't afford to lose.
Talagang hindi stable ang price ng bitcoin dahil maraming problem variables ang aacumulate sa bitcoin at wala magagawa ang mga investors kundi ay mag hintay hanggang tumaas ulit ang value ng bitcoin. Bitcoin ang main source ng mga investors at sila ay walang magagawa kung ito man ay bumaba at tumaas. Ito ay hindi maiiwasan at kailangan intindihin ng mga investors ng bitcoin.