Affecting Market Efficiency by Increasing Speed of Order Matching Systems on ...Takanobu Mizuta
Recently, the speed of order matching systems on financial exchanges has been increasing due to competition between markets and due to large investor demands. There is an opinion that this increase is good for liquidity by increasing the number of traders providing liquidity. On the other hand, there is also the opposite opinion that this increase might destabilize financial markets and increase the cost of such systems and of investors' order systems. We investigated price formations and market efficiency for various ``latencies'' (length of time required to transport data); while other settings remained the same, by using artificial market simulations which model is a kind of agent based models. The simulation results indicated that latency should be sufficiently smaller than the average order interval for a market to be efficient and clarified the mechanisms of the direct effects of latency on financial market efficiency. This implication is generally opposite to that in which the increase in the speed of matching systems might destabilize financial markets.
Affecting Market Efficiency by Increasing Speed of Order Matching Systems on ...Takanobu Mizuta
Recently, the speed of order matching systems on financial exchanges has been increasing due to competition between markets and due to large investor demands. There is an opinion that this increase is good for liquidity by increasing the number of traders providing liquidity. On the other hand, there is also the opposite opinion that this increase might destabilize financial markets and increase the cost of such systems and of investors' order systems. We investigated price formations and market efficiency for various ``latencies'' (length of time required to transport data); while other settings remained the same, by using artificial market simulations which model is a kind of agent based models. The simulation results indicated that latency should be sufficiently smaller than the average order interval for a market to be efficient and clarified the mechanisms of the direct effects of latency on financial market efficiency. This implication is generally opposite to that in which the increase in the speed of matching systems might destabilize financial markets.
Chapter 13 Artificial Intelligence (AI) for Financial Markets: A Good AI for ...Takanobu Mizuta
Chapter 13
Artificial Intelligence (AI) for Financial Markets: A Good AI for Designing Better Financial Markets and a Bad AI for Manipulating Markets
のご紹介
書籍 Digital designs for money, markets, and social designs に収録
スパークス・アセット・マネジメント株式会社
運用調査本部 ファンドマネージャー 兼 上席研究員
水田孝信
本発表資料はスパークス・アセット・マネジメント株式会社の公式見解を表すものではありません.すべては個人的見解であります.
ワークショップ: https://sites.google.com/view/ddmmsd2022/
書籍: https://doi.org/10.1007/978-981-19-0937-5
4-5 May 2022 IEEE Computational Intelligence for Financial Engineering and Economics
Instability of financial markets by optimizing investment strategies investigated by an agent-based model
Takanobu Mizuta SPARX Asset Management Co. Ltd.
Isao Yagi Kogakuin University
Kosei Takashima Nagaoka University
Note that the opinions contained herein are solely those of the authors and do not necessarily reflect those of SPARX Asset Management Co., Ltd.
In this study, we built an artificial market model by adding technical analysis strategy agents (TAs), which search one optimized parameter in a whole simulation run, to the prior model of [mizuta 2016]. The TAs are a momentum TA (TA-m) and reversal TA (TA-r), and we investigated whether investors' inability to accurately estimate market impacts in their optimizations leads to optimization instability.
When both the TA-m and TA-r exist, the parameters of investment strategies were changing irregularly and unexpectedly. This means that even if all other traders are fixed, only one investor optimizing his/her strategy using backtesting leads to the time evolution of market prices becoming unstable. Financial markets are essentially unstable, and naturally, investment strategies are not able to be fixed. The reason is that even when one investor selects a rational strategy at that time, it changes the time evolution of prices, it becomes no longer rational, another strategy becomes rational, and the process repeats.
Optimization instability is one level higher than ``non-equilibrium of market prices.'' Therefore, the time evolution of market prices produced by investment strategies having such unstable parameters is highly unlikely to be predicted and have stable laws written by equations. This nature makes us suspect that financial markets include the principle of natural uniformity and indicates the difficulty of building an equation model explaining the time evolution of prices.
L'intelligence artificielle utilisée sur les marchés financiersTakanobu Mizuta
L'intelligence artificielle utilisée sur les marchés financiers
This article was just translated by DeepL from the Japanese article,
https://www.sparx.co.jp/report/special/3202.html
So, sorry for poor French.
Artificial Intelligence Used in Financial MarketsTakanobu Mizuta
Artificial Intelligence Used in Financial Markets
This article was just translated by DeepL from the Japanese article,
https://www.sparx.co.jp/report/special/3202.html
So, sorry for poor English.
What is a Hight-Speed Trade? Why does a Stock Exchange Speed-Up?Takanobu Mizuta
What is a Hight-Speed Trade? Why does a Stock Exchange Speed-Up?
2021 IEEE 71st Electronic Components and Technology Conference EPS Seminar
Takanobu Mizuta SPARX Asset Management Co., Ltd.
Note that the opinions contained herein are solely those of the authors and do not necessarily reflect those of SPARX Asset Management Co., Ltd.