公司的價值是一個非常重要的點，因為它反映了公司，可以影響投資者的看法。公司價值的目的是通過最大化股價來最大化公司所有者的繁榮。這些主要研究目標是了解企業規模、企業年齡、資本結構、財務績效和企業盈利能力對企業價值的影響。
本研究是因果研究，旨在分析 2015 年至 2019 年期間資本結構、公司年齡、公司規模、財務業績和公司盈利能力對公司價值（案例研究：在 LQ-45 指數上市的公司股票）的影響。
研究結果表明，公司年齡、資本結構和財務績效對公司價值有顯著和積極的影響。另一方面，公司規模和公司盈利能力對公司價值的影響微乎其微，而且是負面的。決定係數 (R2) 為 0.382。這表明公司價值變化的 38.2% 是由公司規模、公司年齡、資本結構、財務業績和公司盈利能力的變化引起的。本研究未涵蓋的其他因素解釋了價值公司中未考慮的 61.8% 的可變性。
結果顯示相關係數(R)為0.618，正相關係數表明企業規模、企業年齡、資本結構、財務績效和企業盈利能力的增加將對應於企業價值的增加，因此暗示存在直接關係變量之間

The value of a company is a very important point because it reflects the company which can affect the perceptions of investors. The purpose of firm value is to maximize the prosperity of the company owners by maximizing the share price. These main research objectives are as to know the influence of firm size, firm age, capital structure, financial performance and firm profitability on firm value.
This research is causal research where it is design to analyze the effect of capital structure, firm age, firm size, financial performance and firm profitability on firm value (case study: company stock that listed in LQ-45 Index) period 2015 -2019.
Findings indicate that firm age, capital structure and financial performance affect firm value significantly and positively. On the other hand, firm size and firm profitability influences firm value insignificantly and negatively. The coefficient of determination (R2 ) was 0.382. This is an indication that 38.2% of variation in value firm was accounted for by changes in firm size, firm age, capital structure, financial performance, and firm profitability. The unaccounted 61.8% of variability in value firm was explained by other factors not covered in this study.
The results shows the coefficient of correlation (R) was 0.618, the positive correlation coefficient indicates that an increase in firm size, firm age, capital structure, financial performance, and firm profitability would correspond to increase in value firm, thus implying a direct relationship between the variables

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