2021年9月3日，北京证券交易所有限责任公司注册成立。北交所对市值及财务指标具体设计了4套标准，企业符合其一即可准入上市。具体标准如下：<table style="border: currentColor; width: 442.5pt; margin-left: -0.6pt; border-collapse: collapse; mso-border-left-alt: 0.5000pt solid windowtext; mso-border-top-alt: 0.5000pt solid windowtext; mso-border-right-alt: 0.5000pt solid windowtext; mso-border-bottom-alt: 0.5000pt solid windowtext; mso-border-insideh: 0.5000pt solid windowtext; mso-border-insidev: 0.5000pt solid windowtext; mso-padding-alt: 6.0000pt 6.0000pt 6.0000pt 6.0000pt;" border="1" cellspacing="0" _dj="MsoNormalTable"><tbody><tr><td style="padding: 3.75pt 6pt; border: 1pt solid rgb(0, 0, 0); width: 54.75pt; mso-border-left-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="73">标准一</td><td style="border-width: 1pt 1pt 1pt medium; border-style: solid solid solid none; border-color: rgb(0, 0, 0) rgb(0, 0, 0) rgb(0, 0, 0) currentColor; padding: 3.75pt 6pt; width: 387.75pt; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="517">预计市值不低于2亿元，最近两年净利润均不低于1500万元，或者最近一年净利润不低于2500万元，且加权平均净资产收益率均不低于8%.</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0); padding: 3.75pt 6pt; width: 54.75pt; mso-border-left-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="73">标准二</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0) currentColor; padding: 3.75pt 6pt; width: 387.75pt; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="517">预计市值不低于4亿元，最近两年营业收入平均不低于1亿元，且最近一年营业收入增长率不低于30%,最近一年经营活动产生的现金流量净额为正。</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0); padding: 3.75pt 6pt; width: 54.75pt; mso-border-left-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="73">标准三</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0) currentColor; padding: 3.75pt 6pt; width: 387.75pt; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="517">预计市值不低于8亿元，最近一年营业收入不低于2亿元，最近两年研发投入合计占最近两年营业收入合计比例不低于8%.</td></tr><tr><td style="border-width: medium 1pt 1pt; border-style: none solid solid; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0); padding: 3.75pt 6pt; width: 54.75pt; mso-border-left-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="73">标准四</td><td style="border-width: medium 1pt 1pt medium; border-style: none solid solid none; border-color: currentColor rgb(0, 0, 0) rgb(0, 0, 0) currentColor; padding: 3.75pt 6pt; width: 387.75pt; mso-border-left-alt: none; mso-border-top-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-right-alt: 0.7500pt solid rgb(0, 0, 0); mso-border-bottom-alt: 0.7500pt solid rgb(0, 0, 0);" valign="center" width="517">预计市值不低于15亿元，最近两年研发投入合计不低于5000万元。</td></tr></tbody></table>（预计市值：指股票公开发行后按照总股本乘以发行价格计算的发行人股票名义总价值。）执行上述标准（     ）①有利于激发各类市场主体活力和创新能力②表明良好的市场秩序需要市场规则来维护③旨在增加社会投资选择，降低融资风险④为筑牢现代化经济体系夯实基础