In the context of finance, the term ‘beta’ refers to? a numeric value that measures the fluctuations of a stock to changes in the overall stock market? a type of systemic risk that arises where perfect hedging is not possible? [2023]

In the context of finance, the term ‘beta’ refers to

the process of simultaneous buying and selling of an asset from different platforms
an investment strategy of a portfolio manager to balance risk versus reward
a type of systemic risk that arises where perfect hedging is not possible
a numeric value that measures the fluctuations of a stock to changes in the overall stock market.

Beta is a measure of the volatility of a stock, or any other financial security, based on the magnitude of change in its price compared to the market as a whole. In mainstream finance, stocks with high beta are generally considered to be riskier than stocks with low beta.
Stocks with high beta, since they are riskier, are also considered to be better investments for investors seeking higher returns.

Arbitrage is the process of simultaneously buying and selling an asset from different platforms, exchanges or locations to cash in on the price difference (usually small in percentage terms). While getting into an arbitrage trade, the quantity of the underlying asset bought and sold should be the same. Only the price difference is captured as the net pay-off from the trade. The pay-off should be large enough to cover the costs involved in executing the trades (i.e. transaction costs). Else, it won’t make sense for the trader to initiate the trade in the first place.

Asset allocation is an investment strategy that a portfolio manager uses to balance risk and reward.
It helps decide which financial security and asset to work in the market.

Basis risk is the potential risk that arises from mismatches in a hedged position. Basis risk occurs when a hedge is imperfect, so that losses in an investment are not exactly offset by the hedge.