Calculating the standard deviation of the portfolio
In portfolio management, risk is measured by “standard deviation”. The standard deviation shows how far the historical price data of an asset deviates from the expected return on that asset. krosno112
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Standard deviation in the model;
Calculated by the formula 𝜎𝑝 = 𝑤1 2𝜎1 2 + 𝑤2 2𝜎2 2 + 2𝑤1𝑤2𝐶𝑜𝑣1,2.
σ: variance of assets, chojnice24
w: The weight of the assets in the portfolio,
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Cov: It expresses the covariance of the assets.
Weighting the portfoli
Optimal weighting for risky portfolios is obtained by maximizing the sharpe ratio. przegladkoninski The Sharpe Ratio is obtained by dividing the difference between the portfolio’s average return and the risk-free rate by the absolute portfolio risk. The total risk of the portfolio is measured by the standard deviation.
While weighting the model portfolio, first the Sharpe ratio was maximized and then some constraints were applied. wadowiceonline
These constraints are;
BTC/USDT ≥ 0.10 ETH/USDT ≥ 0.30 In the weighting of altcoins with a lower market capitalization compared to BTC/USDT and ETH/USDT, the maximum weighting ratio for each is 0.20 and their total weight does not exceed 0.60 has been limited. busko
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Nokia was in the leadership seat of the phone market for a while. The company, which is remembered with its sales record-breaking models, is far from its former power as of today. denne fra Finanza
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Practice Makes Progress
It is possible to say that it has not been able to keep up with the radical change experienced especially since 2010 and that it has been late in joining the Android trend.
As of 2022, we usually see Nokia with entry and mid-range models. In fact, the company, which has stated that it does not make sense for them to produce a flagship in the past months,
made an interesting statement about the smartphone a while ago.
Nokia CEO: We will stop using smartphones by 2030
Nokia CEO Pekka Lundmark made an important statement about smartphones, which are indispensable in daily life. According to Lundmark, many people will stop using phones by 2030. This discourse of the business person is based on 6G.
Lundmark claims that this technology will be commercialized in 2030.
Smartphones are one of the most effective tools that can be used to access 5G networks by 2022. But according to the Nokia CEO, the arrival of 6G will spell the end of these devices. He even says that people will turn to wearable technology products and electronic devices such as a chip implanted in the body. Pekka Lundmark also explained the technical details that the upcoming 6G should have. According to the CEO, he stated that it should be about 100 times or even 1000 times faster than the current 5G network.
Apart from that, Nokia, contrary to expectations, will not appear with flagship models for a while. Because Adam Ferguson, Head of Product Marketing at HMD, made a critical statement on the subject in March. Making an $800 phone just doesn’t make sense to us right now. We don’t want to be involved in a big war with other players. Instead, we will focus on affordable models.