You should not invest more in TGLO, or any investment, than what you can afford to lose, and what is suitable for you, and in your best interest. Only you know what that is.
Not all of the information you read here or on any stock bulletin board may be accurate, and some people's advice may have serious conflicts of interest or not be factual. There are no guarantees here.
You need to figure out how to manage the risk in your portfolio, because if you go all-in, you will be in for some very volatile days, good and bad. Is that what you want?
If a merger didn't happen this year, would the stock collapse from here? It could, but who knows?
We're invested here because we hope things will continue to materialize, and many of us enjoy the speculation and DD. I've made money, and I hope it continues.
Bottom line, you have to go with your gut.