TransAlta Corporation (TAC)
TransAlta Corporation Beta: 0.8849
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TAC Beta Range, Past 5 Years
| Minimum | 0.5443 | Aug 2007 |
| Maximum | 1.315 | Jan 2009 |
| Average | 0.9876 |
About Beta 60 Month
YCharts calculates the 60 month market beta by regressing stock returns less the risk free rate of returns on the market returns less the risk free rate of return (Market returns come from the S&P 500 Total Returns Index (SPXTR), and the risk free rate is the 4 Week Average T-Bill (Monthly). There must be a minimum of 36 months of stock returns for a company to have its beta calculated.
Beta is a measure of the risk of a stock when it is included in a well-diversified portfolio.
In financial theory, the Capital Asset Pricing Model breaks down expected stock returns into two components. The first is the return that would be expected based on covariance with the movements of the market (for most stocks, when the market as a whole goes up, the price of the stock will also go up). The second part is the increase in the price of a stock that is not explained by the market. The first part - covariance with the market - is what Beta captures.
When Beta is positive, the stock price tends to move in the same direction as the market, and the magnitude of Beta tells by how much. If a stock's Beta is greater than 1, that means that when the market index goes up 1%, we expect the stock will go up by more than 1%. On the contrary, if the market goes down by 1%, we expect the stock to go down by more than 1%. Negative Betas, while rare, signify a negative correlation. When the market goes up, we would expect the stock price to go down.
For readers with a background in regression analysis, Beta is the slope of the linear regression shown in the formula below, where Returns are the return on an individual stock or portfolio, Rf is the risk free rate, RMarket is the return on a market portfolio, and e is an error term.
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TAC News
about 35 days ago by CaptainOyama
about 35 days ago by theRandomTrader
Apr 05, 6:54PM Marketwire
about 61 days ago by Good2go
Jan 12, 4:29PM Marketwire
Dec 09, 6:31AM theflyonthewall.com
Nov 30, 5:02PM Street Insider
Nov 14, 12:00PM Marketwire
Nov 01, 3:00PM Marketwire
Oct 27, 12:46PM Street Insider
about 296 days ago by tea8207
about 393 days ago by howardlindzon
about 393 days ago by ycharts
about 581 days ago by Johnny905
about 582 days ago by Johnny905
Recent Quotes
| Symbol | Price | Chg | Chg % | Market Cap |
|---|---|---|---|---|
| TAC | 15.92 | -0.32 | -1.97% | 3.649B |
| SYMC | 14.38 | -0.46 | -3.10% | 10.82B |
| SYKE | 15.05 | +0.00 | +0.00% | 663.70M |
| SYK | 49.81 | -1.64 | -3.19% | 19.62B |
| SYBT | 22.01 | -0.53 | -2.35% | 312.63M |
| SYA | 10.86 | -0.44 | -3.89% | 1.341B |
| SXT | 35.69 | -0.83 | -2.27% | 1.829B |
| SXL | 33.29 | -0.39 | -1.16% | 3.355B |
| SXCI | 88.54 | -1.17 | -1.30% | 5.596B |
| SWZ | 9.84 | -0.10 | -1.01% |
