Investing in the STOCK Market - Nasdaq, DOW, OTC, Pink & more question...?

Theoretical Question...
IF you could know the best possible stock to buy, for an over night only purchase, which market would be the most beneficial to be a part of.
I have considered all, and find the OTC the most risky...with the highest gains. And If I knew what the best mathematical stock to purchase every day would be...I think I'd go with that market, As I see it as less-risky as well (since the funding is lower), and liquidity, mind you, is a part of that calculation (so you know the percentage of opportunity getting rid and getting stuck with a stock)....
Also...
Most Bull trends tend to be in which market? Bull trends that would double your money that is...

Thanks in advance!

Avoid the Pinks. They have low liquidity and way too many shady players. The DOW is not a "market" but rather it is an index of a basket of stocks. I think you mean the NYSE. Then there is the AMEX and NASDAQ. What you are looking for to play day trades is high liquidity with above average volatility. That would be the NASDAQ.

That said, day trading is a TOUGH business. More money to be lost than to be gained for most folks. A better plan is to stay tuned with the economy and industry. Try to figure what commodities are in short supply and high demand. Invest in those stocks for a few months to a couple of years. Last year it was oil, concrete, steel, copper, etc... thanks to the exuberant expansion in China. Last three months solar power was hot. Forward looking think about oil (again) alternative energy and....fresh water! Get the idea?

At this time there is one sure fire long range plan bet against the Dollar.https://www.everbank.com/

just becareful

I trade one stock in the OTC BB. It's UDTT (Universal Detection Techonology)... its haha a measly $.0010 and just jumped 30% today.. :) its at its lows.. but it really cant go much lower (but never say never) either way, its a company that makes bio-terrorism detection equipment and sells it to companies like footlocker and quizno's (i know.. random) but also to the british government and other things. It has more news than alot of OTC stocks.. - Also I trade ZAAP for the long haul.. it's an electric car company that used to be traded on the nasdaq- you can read my whole article about this company on my blog if you want:

seansamazing.blogspot.com

hope this helps

If I know the best possible stock to buy, I really don't care which market it's traded on (as long as it's not the Pink Sheets; see below). All I care about is the return.

The odds are that the best stock won't be on the Pink Sheets. These companies are not subject to normal exchange financial requirements and don't have to make all of the normal SEC filings. It's difficult to find reliable financial information on many of these companies. I don't risk my money on companies that I can't properly evaluate. I'm doing just fine with companies for which I have reliable information. Also, Pink Sheet stocks are favorites of scam artists and swindlers because the low trading volumes make it relatively easy to manipulate the prices.

If I'm going to trade on the Pink Sheets, I'd rather go to a casino. It's gambling either way. I'll probably lose my money, but it will be more fun in the casino.