Underlying Index Performance: The primary driver is the performance of the underlying index that 140700.KO tracks. If the index rises, the ETF price generally rises, and vice-versa.

Supply and Demand: Market forces of supply and demand for the ETF itself can influence its price. Higher demand tends to push the price up, while higher supply can push it down.

Net Asset Value (NAV): The NAV, representing the per-share value of the ETF's holdings, acts as a benchmark. The market price usually stays close to the NAV but can deviate slightly.

Expense Ratio: While not directly causing price fluctuations, the ETF's expense ratio affects its long-term return, making it less competitive than similar ETFs with lower fees.

Market Sentiment: Overall market sentiment and investor confidence can impact ETF prices, particularly during periods of uncertainty or heightened volatility.

Trading Volume & Liquidity: Higher trading volume and liquidity generally lead to tighter bid-ask spreads and more efficient price discovery, making it easier to buy and sell without significantly affecting the price.